Answer:
9x^2
Step-by-step explanation:
It is given that:
x ( x + y ) = 27
If one manipulates the equation, by dividing by x, they get:
x + y = 27/x
It is also given that:
y ( x + y ) = 54
Again, manipulate the equation, only this time, divide by y,
x + y = 54/y
It is obvious that;
x + y = x + y
Yet this was proven;
x + y = 27/x
x + y = 54/y
Therefore, the following has to be true;
27/x = 54/y
To sove the proportion, use cross products;
27/x = 54/y
54x = 27y
Inverse operations:
54x = 27y
/27 /27
y = 2x
Substitute;
(x + y)
y = 2x
= (x + 2x)
= 3x
Now solve:
(3x)^2
9x^2
Find the length of a base and its corresponding height of the triangle.
Answer:10cm
Step-by-step explanation:
Add 4 and 6 to get 10 cm
A type of fish your aquarium cost $9 each you can spend no more than $54 how many of these fish can you buy write an inequality to model the problem how many fish can you buy
Answer:
x=54-9f
6 fish
Step-by-step explanation:
Simplify.....
4p + 2p
Answer:
6p
Step-by-step explanation:
You just add 4 and 2 together and then put p at the end because they are like terms.
Best answer gets brainliest
Thank you for deleting a answer so I can put down the answer so the answer is 1,920
SCIENCE:
Speed Velocity and Time
Q1.
D= 1546
T= 67
S= D/T=S
1546/ 67= 23.07
Q2.
D= 29
T= 32
S= D/T=S
29/32= 0.91
Q3.
D= 43
T= 40
S= D/T=S
43/40= 1.08
Q4.
D= 2467
T= 4.41
S= D/T=S
2467/4.41= 559.41
PLEASE ANSWER
Students in the science lab are measuring the mass of an object on a triple beam balance. The object has a mass of 38 grams. Complete the table below with the absolute and percent error for each students’ measurement. Round your answer to the nearest tenths place.
Answer:
The answer is 40
Step-by-step explanation:
have a nice day!
The absolute error of Danielle, Iris, and HB is 2,6 and 1 gram respectively. The percentage error of Danielle, Iris, and HB are 5%,15%, and 2.5% respectively.
What is the percentage?The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.
The percentage is also called the indicating hundredths. Thus, 2% is two-hundredth, which means 2%=2/100=0.02.
As per the given,
Actual mass = 38
Danielle error = 40 - 38 = 2 grams
% error = 2/40 x 100 = 5%
Iris error = 4 - 34 = 6 grams
% error = 6/40 x 100 = 15%
HB error = 41 - 40 = 1 grams
% error = 1/40 x 100 = 2.5%
Hence "The absolute error of Danielle, Iris, and HB is 2,6 and 1 gram respectively. The percentage error of Danielle, Iris, and HB are 5%,15%, and 2.5% respectively".
For more about the percentage,
brainly.com/question/13450942
#SPJ2
Express this distance in scientific notation using an appropriate unit from the given list. (look below for the image)
Answer:
"C" & 1.4 e4
Step-by-step explanation:
Use "Light-year" unit.
8.232 e16 (miles) / 5.88 e12 = 1.4 e4 (light-years)
Nikos is building a raised rectangular garden in his backyard. The perimeter of the garden is 40 feet. Its width is 8 feet. What is its length?
Answer:
Length = 12 FT
Width= 8 FT
Perimeter= 40 FT
Step-by-step explanation:
* Elimination With Multiplying *
1. 2x − 3y = −6
-5x − 9y = 15
2. −8x − 3y = 16
−8x − 4y = 24
3. 4x − 2y = 22
−3x − 9y = −6
Please help! (I'll give brainliest to the first right answer.)
Answer:
1. 2,3; -2, 3
2. Both points share common values, but their absolute values for the x-value vary.
3. 2,3; 2, -3
4. Both points share common values, but their absolute values for the y-value vary.
Step-by-step explanation:
For 1, the answer is thus:
-On the graph, the original point is 2, 3.
-A reflection over the y-axis changes the x-value, so it would be -2,3.
Similar for the next chart:
-The initial point is 2,3.
-A reflection over the x-axis changes the y-value, so the reflected point would be 2, -3.
The explanation is:
Both points have similar values except with differences in the absolute value.
Hope this helps you.
What is the x and y intercept of the following function
y=1-x
Students in the science lab are measuring the mass of an object on a triple beam balance. The object has a mass of 38 grams. Complete the table below with the absolute and percent error for each students’ measurement. Round your answer to the nearest tenths place.
Answer:
Step-by-step explanation:
Need help for 2 and 3realy don't understand 3
Answer:
p=6 and r=48
Step-by-step explanation:
19=4p-5
19+5=4p
24=4p
24/4=p
6=p
check
19=4p-5
19=4x6-5
19=24-5
19=19
3)r/2-8=16
r/2=16+8
r/2=24
r=24x2
r=48
check
r/2-8=16
48/2-8=16
24-8=16
16=16
MATH HELP!! What is the y-interpret of this line?
Answer:
B(0,2)
there was a y- intercept at the line.. u must see the point that intercept with y- axis
Answer: B. (0,2)
Step-by-step explanation: Look at where the line goes through the Y-axis. You can see it goes through the 2 on the y-axis so its (0,2)
I will write the steps to find the slope and y-intercept from a graph.
Y-INTERCEPT: It's called the "y intercept" and it's the y value of the point where the line intersects the y- axis. For this line, the y-intercept is "negative 1." You can find the y-intercept by looking at the graph and seeing which point crosses the y axis. This point will always have an x coordinate of zero.
SLOPE:The slope will be the same for a straight line no matter which two points you pick as you know. All you need to do is to calculate the difference in the y coordinates of the 2 points and divide that by the difference of the x coordinates of the points(rise over run). That will give you the slope.
Unit Rate - the value of one **hint**divide
Sam paid $131 for 4 Rodeo Concert Tickets. Each ticket costs the same amount. What was the cost of each concert ticket in dollars and cents?
Answer: 32.75
Step-by-step explanation: 131/4 = 32.75
I cant find this answer ANYWHERE. Please help
The table shows the relationship between the number of drops of food color added to different number of cups of cake frosting:
Cups of
Frosting Drops of
Food Color
2 6
3 9
4 12
Which point below shows an equivalent ratio in this situation?
A graph is shown. The title of the graph is Cake Decorating. The horizontal axis label is Frosting in cups. The horizontal axis values are 0, 10, 20, 30, 40, 50, 60. The vertical axis label is Food Color in drops. The vertical axis values are 0, 30, 60, 90, 120, 150, 180. Point C is plotted on the ordered pair 60,20, and Point M is plotted on the ordered pair 50, 150.
A. Point M, because if drops of food coloring are 50, then cups of frosting will be 150
B. Point M, because if cups of frosting are 50, then drops of food coloring will be 150
C. Point C, because if cups of frosting are 60, then drops of food coloring will be 20
D. Point C, because if drops of food coloring are 60, then cups of frosting will be 20
its c, look at the connections.
Which of the following is E ∪ F?
D = {x|x is a whole number}
E = {x|x is a perfect square between 1 and 9}
F = {x|x is an even number greater than or equal to 2 and less than 9}
1. {4}
2. {3, 4, 5, 6, 7, 8}
3. {2, 3, 4, 5, 6, 7, 8}
4. {2, 4, 6, 8}
If you have time... HELP
Answer:
8/5
Step-by-step explanation:
opposite reciprocal
flip sign ±
flip numerator and denominator
what are the names of ALL the members of nct? (you only need to put their stage name)
(i know this i just wanted to see if anyone is pretending they do) meeheheheeh
Answer:
Taeyong, Taeil, Johnny, Yuta, Kun, Doyoung, Ten, Jaehyun, WinWin, Jungwoo, Lucas, Mark, Xiaojun, Hendery, Renjun, Jeno, Haechan, Jaemin, YangYang, Shotaro, Sungchan, Chenle, Jisung
Step-by-step explanation:
Answer:
johnny
jisung
jaemin
jaehyun
jungwoo
jeno
mark
lucas
taeyong
ten
winwin
kun
hendery
yangyang
xiaojun
taeil
haechan
renjun
shotaro
sungchan
yuta
doyoung
chenle
Step-by-step explanation:
i think thats it ;(
also lol dm me answering this 6 days late lol
Your test scores in science are 83 and 87. What possible scores can you earn on your next test to have a test average between 85 and 90, inclusive?
Sheila buys two concert tickets from her friend. She pays $90 for the two tickets . She looks at the tickets and sees that each ticket has face value of 52.50
what was the percent markdown, rounded to the nearest whole percent/?
ASAP PLZ
Answer:
52.50×2=105. then 105-14% answer is 14%
Answer:
14% markdown
Step-by-step explanation:
I havent had to do one of these in a while so I'm not 100% sure that I answered it right. its pretty hard to explain but just add a comment asking for the steps if u want them. and tell me if it was right or wrong plz
pls help asap i need help plz
The table below shows the number of cookies in different numbers of packs:
Number of Packs Number of Cookies
2 6
3 9
4 12
5 25
Is this true or false? The numbers in the table represent a proportional relationship.
Answer:
False, It was till Pack 5 it was going up 3 every pack but at 5 it went up 13 cookies.
answer correct and you get brainlyest
5- 3/14= ?
only fractions no decimals
Answer:
4 11/14
Step-by-step explanation:
I did mental math and thats what I got so that should be right.
Best answer gets brainliest
Answer:
is mine the best answer
Step-by-step explanation:
please say it is
[PICTURE ATTACHED] HEELLPP
variability kiddos.
Answer: D
Step-by-step explanation:
Hope this helps
What is the distance between -3 and 12
Answer:
15 IS YOUR ANSWER
Step-by-step explanation: BRAINLIEST PLEASE AND THANKS
Answer:
15
Step-by-step explanation:
I am not 100% sure, it could be wrong
simplify by combining like terms: 1.9h + 4.5h + 8
Answer:
14.4h
Step-by-step explanation:
I assumed you meant 8h because 8 isn't a like term.
Answer:
=6.4h+8
Step-by-step explanation:
Gloria wants to make beef stroganoff for 12 people. Her recipe serves 8 people and calls for 4.5 pounds of ground beef. How much ground beef should Gloria purchase?
Answer:
6.75 pounds
Step-by-step explanation:
This question is of direct variation. We will use x as our answer. 8 is 2/3 of 12, so 4.5 should be 2/3 of x. We can now make an equation.
In order to solve the equation, we multiply both sides by the reciprocal of 2/3, which is 3/2.
* stands for multiplication
From solving our equation, we get 6.75. We can't forget the units, so the answer is 6.75 pounds.
Erica can solve 30 addition problems in 15 minutes. If she works at the same rate, how many problems can Erica solve in 2 minutes?
Answer:
4 problems.
Step-by-step explanation:
30 is double 15,
4 is double 2
Hope I helped!
Answer:
Erica can solve 4 problems in 2mins.
Step-by-step explanation:
30 divided by 15 is 2, meaning she solves 2 problems in 1min. To solve for 2mins you have to multiply 2 by 2 and you get 4.