Answer:
Yes, you have to distribute.
Step-by-step explanation:
2+5(x+3)-3(x-4)=x+2(2x+4)
2+5x+15-3x+12=2(2x+4)
Add the Numbers
2+5x-3x=2(2x+4)
Combine Like Terms, Then you can rearrange the terms for simplification. You should end up with an exation looking like this:
2x+29=5x+8
Subtract 29 from both sides. Simplify, then subtract 5x from both sides.
2x-5x=5x-21-5x
Simplify, then Divide both sides by the same factor. Simplify once more then you should have
x=7
Hope this helps ;)
Barbara has 25 shirts in her closet 0.6 of her shirts have short sleeves. How many shirts with long sleeves does Barbara have in her closet?
Barbara has 10 shirts with long sleeves
100% of Barbara's shirts is 25
Given: 60% of Barbara's shirts are short sleeves.
That means, 1.0 - 0.6 = 0.4 --> 40% of Barbara's shirts are long sleeves.
We need to find: 40% of 25
0.4 * 25 = 10
10 long sleeved shirts
There were 450 travelers on a flight to Orlando, and 80% of them checked luggage. How many travelers checked luggage?
Answer:
5.625
Step-by-step explanation:
450÷80 I hope I'm right and it helps if not I'm sorry.
Trey is driving to Philadelphia. Suppose that the distance to his destination (in miles) is a linear function of his total driving time (in minutes). Trey has 49 miles
to his destination after 37 minutes of driving, and he has 37.8 miles to his destination after 51 minutes of driving. How many miles will he have to his
destination after 57 minutes of driving?
distance (in miles)
Driving time(in minutes)
As per the linear function, the destination after 57 minutes of driving is 1055 miles.
Linear function:
The linear equation is defined as an algebraic equation of the form
y = mx + b.
involving only a constant and a first-order (linear) term, where m is the slope and b is the y-intercept.
Given,
Trey is driving to Philadelphia. Suppose that the distance to his destination (in miles) is a linear function of his total driving time (in minutes).
Trey has 49 miles to his destination after 37 minutes of driving, and he has 37.8 miles to his destination after 51 minutes of driving.
Here we need to find his destination after 57 minutes of driving.
In this one, first we have to find the linear equation for the situation.
For that, we need the slope and the intercept.
So, here we consider the distance as y axis and the corresponding time as x axis. then we get the points as,
(x1. y1) => (37, 49)
(x2, y2) => (51,37.8)
Then the slope of the line is calculated as,
m = (37.8 - 49) / (51 - 37)
m = -11.2/14
Now, the intercept is calculated using the point (37,49) and the slope m = -11.2/14 is,
49 = -11.2/14(37) + b
686 = -414.4 + b
b = 1100.4
So, the linear equation of the function is
y = -11.2/14x + 1100.4
Here we need to find the distance when the time is 57 minutes,
For that, we have to apply the value of x as 57, to get the value of y,
Therefore,
y = -11.2/14 (57) + 1100.4
y = -45.6 + 1100.4
y = 1055
Therefore, the destination after 57 minutes of driving is 1055 miles.
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please help me to find x,y and z
Graph this line using the slope
and y-intercept:
y= 1/6x + 4
Answer: See attached.
Step-by-step explanation:
To graph this, we will look at the pieces they gave us. Slope-intercept form equations are written in y = mx + b.
➜ The slope, m, is the pitch of the line. It's "rise over run" and helps us know where the plot points. For this problem, we will rise one value and move 6 values right to the next point.
➜ The y-intercept, b, is where the line intercepts the y-axis. It helps us know where the first point goes (0, y). For this problem, we will graph (0, 4).
Using these details, we will graph the line. View attached.
1 The parent function f(x) = x was shifted
7 units down to create function b. Which
represents function?
A
b(x) = -7f(x)
B b(x) = f(x) - 7
C
b(x) = f(x + 7)
D
b(x) = 7-f(x)
What is the answer ?
The answer is b(x)=f(x)-7, which is option B.
The function that represents the new function b will be b(x) = f(x) - 7. Then the correct option is B.
What is a function?A function is an assertion, concept, or principle that establishes an association between two variables. Functions may be found throughout mathematics and are essential for the development of significant links.
A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.
The parent linear function is given below.
f(x) = x
The function is shifted downward direction by 7 units. Then the function b(x) will be given as,
b(x) = f(x) - 7
The function that represents the new function b will be b(x) = f(x) - 7. Then the correct option is B.
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22 is what percent of 110?
Answer:
22 is 20% of 110
Step-by-step explanation:
22 of 110 can be written as:22/110To find percentage, we need to find an equivalent fraction with denominator 100. Multiply both numerator & denominator by 100 22/110 * 100/100=[22*100] /110 *1/100=20/100Therefore, the answer is 20%help ASAP we have to show out work
Answer:
1st[tex]7532 + 100y ^{2} + 100y^{2} - 1100[/tex]
2nd
[tex]200y ^{2} + 6432[/tex]
final answer
[tex]a = 200[/tex]
[tex]b = 6432[/tex]
Jenna is now x years old and Amy is 3 years younger than Jenna. In terms of x, how old will Amy be in 4 years?
Answer:
x-3+4 = x+1
Step-by-step explanation:
x-3+4 = x+1.
Find the missing angle.
Answer:
110 degrees?
Step-by-step explanation:
35+35= 70 right?
So then would have to subtract the 70 from 180 because that is total length of an angle to get 110 degrees
110 degrees
I might be wrong, because it might be different with triangles
Answer:
U = 110
Step-by-step explanation:
The formula for finding missing angle is.
a + b + c = 180 or in this case S + U + T = 180.
You already have the measurement of two angles so plug those in.
35 + U + 35 = 180
Now all you have to do is simplify and solve it.
35 + 35 + U = 180
70 + U = 180 you simplify by adding together 35.
U = 110 to cancel out 70 and isolate U you subtract 70 to both sides.
Given the line segment AB with endpoints (-10,0) and (6,8). Find the approximate value of AB, round the answer to the nearest tenth if necessary. Then find the exact coordinates of its midpoint.
The line segment AB with endpoints (-10,0) and (6,8). The equation of the line segment is x-2y+10=0.
Given that,
The line segment AB with endpoints (-10,0) and (6,8).
We have to find the equation of the line segment.
The equation of the line formula is y-y₁=m(x-x₁).
Here we don't know the m value that is nothing but slope of the line.
First we have to find the slope of the line segment.
Slope of the line m=[tex]\frac{y_{2} -y_{1} }{x_{2} -x_{1} }[/tex]
m=(8-0)/(6+10)
m=8/16
m=1/2
Now,
We know the equation of line is y-y₁=m(x-x₁)
y-0=1/2(x+10)
2y=x+10
x-2y+10=0
Therefore, The equation of the line segment is x-2y+10=0.
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Graph the function 6=3y
7y - 14 factor please ..
Answer:
2
Step-by-step explanation:
7y-14=0
7y=14
7y/7=14/7
y=2
guage arts
Science
Social studies
Y.10 Solve one-step and two-step equations: word problems HCP
Submit
Recommendations
Skill plans
Brianna is very good at keeping her school binder organized. Every time her teacher returns
an assignment, Brianna puts it in the right section. Brianna has 113 assignments in the
history, science, and art sections combined. The rest of her assignments are in the math
section. Brianna has 182 assignments in total.
Use an equation to find the number of assignments in the math section of Brianna's binder.
assignments
You
The number of mathematics assignments are 69.
How to form an equation?Ax+By=C is the usual form for two-variable linear equations. A standard form linear equation is, for instance, 2x+3y=5. When an equation is given in this format, finding both intercepts is rather simple (x and y). When attempting to solve systems involving two linear equations, this form is also quite helpful.
Given : Brianna has 113 assignments in history, science and art.
Let x be the number of assignments that are in math section. There are 182 assignments in total.
The equation to represent this is
113 + x = 182
x = 182 - 113 = 69.
So the number of math assignments are 69.
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there are 10 questions on a discrete mathematics exam. how many ways are there to assign scores to the problems if the sum of the scores is 100 and each problem is worth at least 5 points?
There are 12,565,671,261 ways to assign scores to the problems in discrete mathematics exam.
What is meant by the term combination?A combination is a set of n items taken k at a time with no repetition. The conditions k-selection, k-multiset, and k-combination to repetition are frequently used to refer to combinations wherein repetition is permitted.In this case, we must employ the combination as well as repetition formula.
C(n + r-1, r) = (n + r -1)!/ r! (n - 1) !
n = 10 is provided (The number of questions)
Every question is worth a minimum of 5 points.
For 10 question = 10×5 = 50 points.
The total are 100 (sum of the scores)
r = 100 - 50
r = 50
Applying the formula.
C(10 + 50 - 1 , 50) = (10 + 50 - 1)!/ 501 (10 - 1)!
C(59, 50) = 59!/50!9!
We get by clarifying the above factorial.
C(59, 50) = 12,565,671,261
Thus, there are 12,565,671,261 ways to assign scores to the problems in discrete mathematics exam.
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Safara wants to rent a bicycle the graph shows the cost for renting a bicycle for different lengths of time. What is the slope of the line?
The slope of the line will be equal to 30.
Slope of a line may be defined as the steepness of a curve. Slope of line can be positive, negative or zero. Slope of a line is used to determine the equation of the line which is given as y = mx + b where m is the slope, b is y intercept and x and y are independent and dependent variables respectively. The slope of a line on points (x₁, y₁) and (x₂, y₂) is given by the formula, m = y₂ - y₁/x₂ - x₁.
According to the question the value of points is (x₁, y₁) = (0, 0) and (x₂, y₂) = (2, 60).
Now, the slope can be calculated as
m = (60 - 0)/(2 - 0)
=> m = 60/2
=> m = 30 which is the required slope.
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If X=[tex]\frac{2a+3}{3a-2}[/tex] ,express [tex]\frac{x-1}{2x+1}[/tex] in terms of a
Expressing [tex]\frac{x-1}{2x+1}[/tex] in terms of a gives [tex]\frac{5-a}{7a+4}[/tex]
How to write the given expression in terms of aGiven that:
[tex]x=\frac{2a+3}{3a-2}[/tex]
[tex]\frac{x-1}{2x+1}[/tex]
The Knowledge required here is substitution, the value of x is given. Substitute [tex]x=\frac{2a+3}{3a-2}[/tex] in any place x is seen in the numerator and the denominator.
The numerator
x - 1
substituting the value of x
[tex]\frac{2a+3}{3a-2}-1[/tex]
[tex]\frac{(2a+3)-(3a-2)}{3a-2}[/tex]
[tex]\frac{2a+3-3a+2}{3a-2}[/tex]
[tex]\frac{5-a}{3a-2}[/tex]
The denominator
2x + 1
substituting the value of x
[tex]2*\frac{2a+3}{3a-2} +1[/tex]
[tex]\frac{4a+6}{3a-2} +1[/tex]
[tex]\frac{(4a+6)+(3a-2)}{3a-2}[/tex]
[tex]\frac{7a+4}{3a-2}[/tex]
combining the fraction
Here the numerator and the denominator is brought together and division of fraction is used to solve
[tex]\frac{\frac{5-a}{3a-2}}{\frac{7a+4}{3a-2}}[/tex]
[tex]\frac{5-a}{3a-2}}*\frac{3a-2}{7a+4}[/tex]
[tex]\frac{5-a}{7a+4}[/tex]
Using substitution as required, then expressing the equation in terms of a gives [tex]\frac{5-a}{7a+4}[/tex]
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Please HELP ME!!! due at 8pm tonight 10/12/22
Answer:
y=2x+4
Step-by-step explanation:
get x is get two point let’s say (-2,0) and (0,4)
The 4-0/0-(-2)=4/2=2 so 2 is x and (0,4) is where it hit the y axis so 4 is b plug in
Y=2x+2
2 × 10 + 8 × 1 + 1 × 0.1 unit form
Answer: 20 x 1 x 0.1 + 8 + 1
2 + 8 = 10
suppose that a certain college class contains students. of these, are juniors, are chemistry majors, and are neither. a student is selected at random from the class. (a) what is the probability that the student is both a junior and a chemistry major? (b) given that the student selected is a junior, what is the probability that she is also a chemistry major?
The answer will be .25 and .25 for both set of question. using probablity.
What is Probability ?
Mathematical explanations of the likelihood that an event will occur or that a statement is true are referred to as probabilities.
Total number of students =1-juniors+chemistry+neither+both
(a) For both a junior and chemistry major =1/4 =. 25
(b) probability that she is also a chemistry major will be 1/4 =. 25
Hence The answer for the above two set of qustion will be .25 and .25.
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-3( v + 2) - 2v simplify use distributive property
NOTE -3 MUST MULTIPLY EVERYTHING IN THE BRACKETS.
[tex] = - 3(v) - 3(2) - 2v \\ = - 3v - 6 - 2v \\ = - 3v - 2v - 6 \\ = - 5v - 6[/tex]
GOODLUCK.
find the edge length of a cube whose volume is 1.728cubic cm is the edge length a rational number
The edge lengths of a cube that has a 1.728 cm³ volume is 1.2 cm
What is the volume of a cube?The volume of a cube is the given by the length of one edge raised to the power of 3
The volume of a cube, V = Length, L × Width, W × Height, H
Given that the lengths of the edges of a cube are equal, we have!
Length, L = Width, W = Height, H
Which gives;
The volume of a cube, V = L × L × L = L³
Therefore, for the given cube, we have;
L³ = 1.728 cm³
1.728 = 1728/1000
(a + b)³ = a³ + 3•a²•b + 3•a•b² + b³
Taking a = 10, and b = 3, we have;
(10 + 2)³ = 10³ + 3×10²×2 + 3×10×2² + 2³ = 1728
Therefore;
1728/1000 = (10 + 2)³/10³ = 12³/10³
Which gives;
L³ = 12³/10³
[tex] \displaystyle {L = \sqrt[3]{ \frac{{12}^{3} }{ {10}^{3} } } = 1.2}[/tex]
The edge lengths of the cube, L = 1.2 cm
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The wheel chair ramp at a local arena has a ramp length of 20 feet and a rise of 17 inches. What angle does the ramp make with the sidewalk? Round to the nearest tenth of degree.
Answer:
58.2 degrees
Explanation:
The given problem is illustrated using the diagram below:
The angle the ramp makes with the sidewalk is labeled x above.
Using trigonometry:
[tex]\begin{gathered} \sin x=\frac{17}{20} \\ x=\arcsin (\frac{17}{20}) \\ x=58.2\degree \end{gathered}[/tex]The angle the ramp makes with the sidewalk is 58.2 degrees.
Need help with math question
Answer:
3/2
Step-by-step explanation:
XY/Z
-2×-3/4
6/4
3/2
e function.
f(x) = -4x² + 3x − 11
Find f(-4)
Answer:
-87
Step-by-step explanation:
-4x^2 + 3x - 11
-4(-4)^2 + 3(-4) - 11
-4 * 16 + 3(-4) - 11
-4 * 16 - 12 - 11
-64 - 12 - 11
-76 - 11
-87
Hope this helps! :)
Discussion Topic Ratios and rates are ways to relate different quantities. For example, for every 1 car, there are 4 tires. This is a ratio. What other examples of ratios can you think of? A rate is similar to a ratio. Rates usually include the word per. One example of a rate is a car driving 60 miles per hour. What other examples of rates can you come up with?
Some examples of ratios are:
There are 20 passengers on each bus
There are 2 red and 3 black balls in each box.
Some examples of unit rates are:
The man can run 10 miles in one hour.
I can type 100 words in 30 minutes.
What is ratio and unit rate?A unit rate means a rate for one of something.
We write this as a ratio with a denominator of one.
The ratio is the comparison of two quantities of the same units.
We have,
Ratio:
For every 1 car, there are 4 tires.
We can have some examples of ratios as:
1 - There are 20 passengers on each bus
2 - There are 2 red and 3 black balls in each box.
Unit rate:
Car driving 60 miles per hour.
We can have some examples of unit rates:
1 - The man can run 10 miles in one hour.
2 - I can type 100 words in 30 minutes.
Thus,
Some examples of ratios are:
There are 20 passengers on each bus
There are 2 red and 3 black balls in each box.
Some examples of unit rates are:
The man can run 10 miles in one hour.
I can type 100 words in 30 minutes.
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What is an equation of the line that passes through the point (-1, 5) and is parallel
to the line x - y = 6?
Answer:
Step-by-step explanation:
An equation of the line that passes through the point (−4,8) and is parallel to the line x+y=6 could be y = - x + 4 .What is the Point-slope form?The equation of the straight line has its slope and given point.If we have a non-vertical line that passes through any point(x1, y1) has gradient m. then general point (x, y) must satisfy the equationy-y₁ = m(x-x₁)Which is the required equation of a line in a point-slope form.WE havex + y = 6y = - x + 6Slope= -1Now, Use the same slope since the two lines are parallel to each other.Point-slope formula:y - 8 = -1 (x - - 4)y - 8 = -1 (x + 4)y - 8 + 8 = -x - 4 + 8y = - x + 4 (Slope-intercept form)Hence, an equation of the line that passes through the point (−4,8) and is parallel to the line x+y=6 could be y = - x + 4 .Learn more about slope here: brainly.com/question/2503591#SPJ2
⇒Parallel lines have equal gradients . It means that to obtain the gradient of the new equation we should first find the gradient of the given equation by writing the given equation in the form y=mx+c
[tex]x-y=6\\y=x-6[/tex]
⇒The gradient of the given equation is 1 as we know that the gradient of the equation is the coefficient of the variable x
This means the equation of the new equation is also going to be 1 since I explained above why. to find the value of c in the new equation we will substitute the known values in the general equation including the point.
[tex]5=1(-1)+c\\6=-1+c\\c=5+1\\c=6[/tex]
This means that the new equation is going to be:
[tex]y=x+6[/tex]
Dilations and Partitions
A segment AB is partitioned as shown.
A
P
Complete the statement.
Answer:
3:7
Step-by-step explanation:
AR has 3 spaces while AB has 7 means its 3:7
Answer the following given the arithmetic sequence -55, -47, -39, -31.
Write the general term (aka the rule) for the nth term of this sequence. (Simplify [Distribute and Combine] the arithmetic sequence formula).
f(n) =
15th term =
Answer:
f(n)=8n-63
15th term=57
Step-by-step explanation:
goes up by 8 each time therefore the coefficient of n is 8
take for example the 1st term,8n would be 8, to get to -55 from 8 you would have to subtract 63, therefore the nth term is 8n-63.
Properties of equality can be used to justify steps in solving an equation.
Equation is 4x-1 =27. that means the correct answer is 27
The equals sign is used in mathematical formulas to show that two expressions are equal. In contrast to English, where an equation is defined as any well-formed formula that consists of two expressions joined by the equals sign, French defines an equation as containing one or more variables. The first stage in resolving a variable equation is determining the values of the variables that lead to equality.
Here, 4x-1 =27
We know that x=7
4x=27+1
4x= 28
Therefore x = 28÷4 = 7.
Hence, 4x-1 =27
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