Answer:
x = 30
General Formulas and Concepts:
Pre-Alg
Order of Operations: BPEMDASEquality PropertiesStep-by-step explanation:
Step 1: Define equation
8x - 3(2x - 4) = 3(x - 6)
Step 2: Solve for x
Distribute: 8x - 6x + 12 = 3x - 18Combine like terms: 2x + 12 = 3x - 18Subtract 2x on both sides: 12 = x - 18Add 18 to both sides: 30 = xRewrite: x = 30Step 3: Check
Plug in x to verify it's a solution.
Substitute: 8(30) - 3(2(30) - 4) = 3(30 - 6)Multiply: 240 - 3(60 - 4) = 3(30 - 6)Subtract: 240 - 3(56) = 3(24)Multiply: 240 - 168 = 72Subtract: 72 = 72A recipe for cookies calls for 1 cup of butter, twice as much sugar as butter, and three times as much flour as sugar. How many cups of flour will you need if you halve the recipe?
Answer : 3 cups
Explanation: if the sugar is as twice as much as butter we need 2 cups of sugar if flour is 3 times as much as sugar we’ll need 6 cups half of 6 is 3
help me :<<<<<<<<<<<<_
help much? brainliest if i can
Answer:
Option 1:[tex]y = -\frac{2}{3}x+5[/tex] is the correct answer.
Step-by-step explanation:
The slope-intercept form of a line is given as:
[tex]y = mx+b[/tex]
Here m is the slope and b is the y-intercept
m is calculated using the formula
[tex]m = \frac{y_2-y_1}{x_2-x_1}[/tex]
Given points are:
[tex](x_1,y_1) = (-3,7)\\(x_2,y_2) = (9,-1)[/tex]
Putting the values in the formula
[tex]m = \frac{-1-7}{9+3}\\= \frac{-8}{12}\\=\frac{-2}{3}[/tex]
Putting m=-2/3 in equation
[tex]y= -\frac{2}{3}x+b[/tex]
Putting (9,-1) in equation
[tex]-1 = -\frac{2}{3}(9)+b\\-1 = -6+b\\b = -1+6\\b = 5[/tex]
Putting the value of b
[tex]y = -\frac{2}{3}x+5[/tex]
Hence,
Option 1:[tex]y = -\frac{2}{3}x+5[/tex] is the correct answer.
2. through: (8,5), perpendicular to y=-1/2x +4
Tommy bought stamps at the post office. Some of the stamps had a snowflake design, some had a truck design, and some had a rose design. Tommy bought 14 snowflake stamps. He bought 5 more truck stamps than snowflake stamps, and 5 fewer rose stamps than truck stamps. How many stamps did Tommy buy in all? Show your work, how you came up with the answer.
Answer:
47
Step-by-step explanation:
s = Number of stamps with snowflake design = 14
Number of stamps with truck design is 5 more than snowflake design
[tex]t=s+5\\\Rightarrow t=14+5\\\Rightarrow t=19\ \text{stamps}[/tex]
Number of stamps with rose design is 5 fewer than truck stamps
[tex]r=t-5\\\Rightarrow r=19-5\\\Rightarrow t=14\ \text{stamps}[/tex]
Total number of stamps
[tex]s+t+r=14+19+14\\ =47[/tex]
So total number of stamps Tommy bought is 47.
A building has 63 apartments and 70 bathrooms. What is the ratio of apartments to bathrooms in the building?
Answer:
63:70
Step-by-step explanation:
Solve the linear equation
3.4 + 2(9.7 – 4.8x) = 61.2
The product of 2 and y is at least 10. solving inequalities
Answer:
2y>10
y>5 is your answer
Approximate the value of the square root of 110 to the nearest hundredth
Answer:
10.4900
Step-by-step explanation:
pls make a brainliest
A circle has a radius 30 cm. What is the area? Show your
work.
Answer:
I believe the area = 2,826
Step-by-step explanation:
A=pie×radius²
A= 3.14×30²
A=3.14×900
A=2,826
SINE COSINE TANGENT If someone who acctually understand this could help me por favor :)
Answer:
here it is, hope it helps
Answer:
Step-by-step explanation:
sin M = [tex]\frac{3\sqrt{11} }{18} = \frac{\sqrt{11} }{6}[/tex]
cos M = [tex]\frac{15}{18} = \frac{5}{6}[/tex]
tan M = [tex]\frac{3\sqrt{11} }{15} = \frac{\sqrt{11} }{5}[/tex]
A news report says that 9% of middle school students are on the track team. There are 600 students in your middle school How many students in your school would you expect to be on the track team? HE Pad SATTE BAR HG West nus SAUNA w 1
Answer: 54
9% of 600 would be 54.
Please help me before I fail... I really need some help
Answer:
sin 61 degrees = x/55
55 * sin 61 degrees = x
x is approximately 48.1 if I did the math right
Step-by-step explanation:
hope it helps! gl
Please help it’s due in an hour! It’s algebra.
Answer:
You might wanna double check some of these because i might've forgot to flip some of the < and > signs but I'm pretty sure its correct
1) y = x < -18 and y = x < 18
2) y = -3 < x < 3
3) x = 1 < y < 6 (it just gets simplified)
4) x = -3 > y > -18
5) y = -2 > x and y = x < 3.5
6) y = 8.5 > x > 5.5
7) y = -5.75 < x < -3.5
8) y = 1 > x > 2.25
9) -17 < x < -5
Step-by-step explanation:
Solve for x.
Answer Choices:
7
8
9
-11
Answer:
x = -11
Step-by-step explanation:
Well the two equations add up to 180 because they are a linear pair.
x + 56 + x + 146 = 180 (collect like terms)
2x + 202 = 180 (subtract 202 on both sides)
2x = -22 (divide by 2 on both sides)
x = -11
Hope this helps ya!!
Add. 2/3 + 1/4 ...............................
Answer:
11/12
Step-by-step explanation:
2/3+1/4
8/12+3/12= 11/12
im high & kinda slow help out .
Answer:
In google
Step-by-step explanation:
Is all
please help. its on ratio
Answer:
You: 6
Friend: 12, 16
Your friend sold 16 tickets
Step-by-step explanation:
u-U sincerely~ MiHa
PLEASE HELP, #30 and #40 !! DUE SOON
Answer:
38. x = 60
40. x = 10
Step-by-step explanation:
38.
The segment labeled 30 connects the midpoints of two sides of a triangle, so it is parallel and half the length of the third side.
x = 2 * 30 = 60
40.
Look at the big outer triangle.
Its left side has length x. It is made up of two segments that are congruent.
The right side of the big triangle is made up of two segments that are congruent and are also congruent to the segments of the left side. That makes the left and right sides of the big triangle congruent. This is an isosceles triangle, so its base angles are congruent. The left base angle measures 60, so the right base angle also measures 60. That means the top angle also measures 60. This triangle is isosceles and equilateral.
Since the segment measuring 5 has endpoints that are midpoints of two sides of a triangle, it is parallel to the third side and half its length.
The bottom side of the triangle measures 2 * 5 = 10. Since the triangle is equilateral, then x = 10.
A furniture store had a chair that costs $42. The owner put it on sale for 20% off. How much is the chair now?
Answer:
$33.60
Step-by-step explanation:
Answer:
33.60
Step-by-step explanation:
20% of 42 is 8.40. Subtract that from 42 to get your answer.
Can someone plz help me
Answer:
D)
Step-by-step explanation:
Factor completely...I need help with my algebra 2 assignment!
Which function has a graph with a y-intercept of -4?
A. 2x – 4y = 8
B. 2x – 8y = -4
C. 4x – 2y = -8
D. 4x - 2y = 8
Answer:
D
slope is 2 and y-intercept is (0, -4)
Step-by-step explanation:
4x-2y= 8 move variable x to the right (change signs)
- 2y= -8 + 4x Divide both sides by 2
y= -4 + 2x reorder terms using communitive property
y = 2x -4
y= mx + b
if 2x + 5y = -5 what is x if y = -5
HELP ASAP
Answer:
x=10
Step-by-step explanation:
first substitute y with the value (-5)
2x+5(-5)=-5 which is simplified to 2x+-25=-5
add 25 to -5 which gives you 2x=20
then divide 20 by 2 which makes x=10
Richard spent $30 at a store. He spent $14 on a book and bought some CD's at $4 each. How
many CD's did Richard buy at the store? Write an equation to represent the problem, then
solve.
Answer:
4
Step-by-step explanation:
30 minus 14 = 16 and 16 divided by 4 is 4. so the answer is 4
Express each ratio as a fraction in the simplest form
12 blue cars out of 48 cars
[EASY] What's the slope of the line?? PLEASE HELP
Answer:
-3/1
Step-by-step explanation:
you go down 3, and to the right one. slope is rise over run so -3 over 1
The steps in solving 5b - 6 = 24 are:
Answer:
5
Step-by-step explanation:
5
A survey of 100 parks showed the following.
37 had camping.
28 had camping and hiking trails.
69 had hiking trails. 33 had hiking trails and biking paths.
58 had biking paths. 15 had hiking trails, biking paths and camping.
22 had camping and biking paths.
Answer:
A) 2
B) 71
c) 4
D)42
Step-by-step explanation:
Draw the Venn diagram starting from the intersection of all
Let a(x) be the amount of money remaining on Hillary's gift card after purchasing x apps on her phone.
Since a(12) = (38, 15,35, 65) Hillary will have
(35,15,38,12) dollars remaining on her card after purchasing
(12,15,35,38) apps.
Answer:
she purchased 12 apps costs 12 *1.25 = 15 . So , she spent 15 ... Since a(12) = 35, Hillary will have 35 dollars remaining on her card after purchasing 12 apps.
Step-by-step explanation:
hopefully this helps
Answer:
35, 35, & 12.
Step-by-step explanation:
i did the test and i got it right :D