Mathematics Middle School

Find the value of the variable(s) in each figure. Explain your reasoning​

Find The Value Of The Variable(s) In Each Figure. Explain Your Reasoning

Answers

Answer 1

Answer:

x=14

y=37

Step-by-step explanation:

9x+12+3x=180

12x+12=180

      -12   -12

12x=168

divide both sides by 12 and

x=14

then plug in 3(14)+4y-10=180

42+4y-10=180

32+4y=180

4y=148

y=37

Answer 2
X=15
Y=36.25


9x+12+3x=180
-12 -12
12x=180
divide by 12 both sides
X= 15

4y-10+3x=180
Substitute x for 15
4y-10+45=180
4y+35=180
-35 -35
4y=145
divide 4 both sides
Y=36.25

Related Questions

Naomi bakes 24 cookies in 10 minutes. At this rate, how many cookies can she bake in 30 minutes?

Answers

Naomi will be able to bake 72 cookies in a time span of 30 minutes

She will bake 72 cookies

If the circle below is cut from the square of plywood below, how many square inches of plywood would be left over?
Use π = 3.14, and round your answer to the nearest hundredth.

Answers

Answer:

[tex] = area \: of \: square - area \: of \: circle \\ = (s \times s) - (\pi {r}^{2} ) \\ = (24 \times 24) - (3.14 \times ( { \frac{24}{2} })^{2}) \\ \\ = 576 - 452.16 \\ = 123.84 \: square \: inches[/tex]

1234e=_yface292325h-k=opesjdh

Answers

Answer:

32td

Step-by-step explanation:

A water balloon is thrown out of a window 96 feet above the ground. The balloon is traveling downward at 16 feet per second initially. If h is the balloon’s height in feet after t seconds, then

h = -16t2 -16t + 96,

It will take the balloon ____ seconds to hit the ground.

Answers

I think the answer is 3 sec

someone help me please.

Answers

Answer:

t = 12h

Step-by-step explanation:

t = total

h = hours

I’m positive it’s 12 .!!!!

What is the perimeter of the kite-shaped quadrilateral IKDN?

Answers

i think the right answer is c

Answer: C, P=a×b

Step-by-step explanation:

Is this polygon regular or irregular?


irregular
regular

Answers

Answer: irregular

Step-by-step explanation:

it is irregular because its sides are not equal

it is irregular because all of the sides are not the same length

Draw a histogram and a box-and-whisker plot to represent the combined data, and answer the questions. Be sure to include the new graphs as part of your final submission.

How do the graphs of the combined data compare to the original graphs?
Compared to the original graphs, do the new graphs make it easier or more difficult to estimate the price of a book?

Answers

When comparing bars side by side, they should have a consistent scale.

Use a side by side bar or a clustered bar graph to enable comparisons of individual values.

Use a stacked bar graph to highlight part to whole relationship.

Use a logarithmic scale if your audience can understand it.

Multiply

132.71 x 10 with the power of 2

Answers

Step-by-step explanation:

132.71 x 10 with the power of 2 = 13271

data set: 3,4,5,7,8,9,11,12,13

what is the absolute deviation for 3

Answers

Answer:

maybe 3.6?? i dont exactly know what the absolute deviation for 3 is but i have the standard deviation

Step-by-step explanation:

sorry

The absolute deviation would be 2.5 repeating

Katie draws 14 pictures in 24 minutes. At this rate, how many pictures can she draw in 312 minutes?

Answers

Answer:

Hi there! the answer should be: Katie can draw 182 pictures in 312 minutes

Step-by-step explanation:

312 ÷ 24 = 13

14 x 13 = 182

hope this helped qwq

katie can draw 182 pictures in 312 minutes.

first, we should find out how many pictures she can draw in 1 minute. 14/24 equals 0.583333... pictures per minute. 0.583333... times 312 equals 182 pictures (i used a calculator so this should be correct). hope this helps!

By what percent did the enrollment decrease from 2014 to 2015?

2014: 285
2015: 228

Answers

Answer:

0.8 percent

Step-by-step explanation:

divide 228 by 285

0.8 cause 228 divided by 285 is 0.8

Please help me I have a D in this class and I really want to pass 7th grade


ill mark brainliest

Answers

Answer:

positive the line is going up and it increasing so positive association i've done this b4 trust me

POSITIVE ASSOCIATION

Step-by-step explanation:

Answer:

positive

Step-by-step explanation:

in the 1970s the population was in the 80 thousands

in 2010 it is almost in the 140 thousands

there are no points in the graph where the population was lower than where it started

the numbers keep increasing so it is positive assocation

help i need the answer i have a low grae in math and need to get this right pls and thx❤

Answers

Answer: Put one dot above the number 1 on the dot plot. Put four dots above the number 2 on the dot plot. Finally, put one dot above the number 3 on the dot plot.

Step-by-step explanation:

Hope this helps and Please mark Brainliest.

Help!!!!!!!!!!!!!!!!

Answers

0.21m is the answer to this question good luck hun <3

LAST ONE LUVS:) thx for all the help!!

Answers

Answer:

hi

Step-by-step explanation:

A is 50 and B is 10

then, C is 5

50+10=60

50-10=40

50÷10=5

have a nice day

Answer:

Step-by-step explanation:

A+B=60

A=60-B

substitute the value of A in

A-B=40

60-B-B=40

60-40=2B

20/2=B

10=B

Now, substitute the value of B in

A+B=60

A+10=60

A=60-10

A=50

A/B=C

50/10=C

5=C

Explain how to decompose a triangle into congruent triangles. How do those decomposed pieces relate to the area of the rectangle?

Answers

Answer: You would divide the rectangle into half, to form two congruent triangles. When you multiply the area of 1 of the triangles, it gives you the area of both triangles, and so the area of the triangle as a whole.

Step-by-step explanation:

First you would have to divide the rectangle into half, to form two congruent triangles. Then if you multiply the area of 1 of the triangles, it will give you the area of both triangles, and so the area of the triangle as a whole.

Help please. Geometry.

Answers

Answer:

Trapezoid i think

Trapezoid is probably the answer

Can anyone help me out I will give you a brainlist if you answer right

Answers

There are a few reasons thay Tammy's
sample may not be valid. Firstly, she had a
relatively small sample size, meaning that
she had a potentially large margin of error.
Additionally, she was asking students from
her math class, which could also have
created a bias simply due to the fact that
they were currently doing math. In order to
survey a more valid sample, she should
consider student of other grade levels and
from other classes to ensure that she has
the most information possible and to create
variation in her sample.

What is the value of u ?

Answers

Yea 53 because they are across from each other

Can someone please answer this I’d really appreciate it ~20 points!!~

Answers

The correct answer for question 9 is 12:43 the correct answer for 10 is
The awnser for 9 is 12:43 am

Answer Correct plzz worth 10 points!!!

Answers

Answer:

[tex]\text{1. }p<1000,\\\text{2. }p>500, \\\text{3. No, 487 does not meet Lin's inequality}, \\\text{4. Yes, 742 meets both inequalities}.[/tex]

I believe that this is the answer

A parallelogram is shown below:

A parallelogram ABCD is shown with DC equal to 9 feet and the perpendicular distance between AB and DC equal to 8 over 9 foot.

Part A: What is the area of the parallelogram? Show your work. (5 points)

Part B: How can you decompose this parallelogram into two triangles? If this parallelogram was decomposed into two triangles, what would be the area of each triangle? (5 points)

Answers

Answer:

A：8，B：cut from AtoC 4feet

find the errors.
......

Answers

i don’t see any errors everything looks fine to me. maybe i’m missing something :(

ANSWER ASAP IS DUE IN 20 MINUITES (MIDDLE SCHOOL) (PROBABILITY)

Answers

Answer:

A ). 12

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

151 divided by 25

Books at a library sale are sold for $3.50 each. A function, y = 3.50x can be used to generate an input/output table for this scenario. Which statement is true about an accurate graph of this data?

A. The data is continuous, so it does not matter whether or not the points are in a line.
B. The data is discrete, so the graph is a series of unconnected points.
C. The data is continuous, so the graph is a series of unconnected points.
D. The data is discrete, so the points are connected with a line.

Answers

The answer is C . The data is continuous so the graph is a series of unconnected points
The answer is c the data is continuous so the graph is a serious of unconnected points.

please do all i need helppppppp

Answers

Answer:

1. 30 metres

2. 27 squared feet,

3.  25.13 cm

4. 50.27 sqared inches

5. 15.71 metres

6. 380.13 squared metres

7. Area is: 4.52 squared metres Circumference is: 7.54 metres

8. Circumference is: 47.12 feet Area is: 176.71 squared feet

Step-by-step explanation:

1. Since you're rounding pi, your calculation would be:

2 × 3 × 5 = 30

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2. Since you're rounding pi, it would be:

3 × 3² = 27

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3. Use the formula for number 5

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4. Use the formula in number 6

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5. Formula for the circumference of a circle is:

[tex]C=2\pi r[/tex]

So:

2 × 3.14 × 2.5 = 15.71

---------------------------------------------------------------------------------------------------------------

6.  Formula for the area of a circle is:

[tex]A=\pi r^2[/tex]

So:

3.14 × 121 =  380.13

---------------------------------------------------------------------------------------------------------------

7. Use the formula for numbers 5 and 6 to figure these out

---------------------------------------------------------------------------------------------------------------

8. Use the formula for 5 and 6, except divide the diameter by 2 because the formula only works with the radius

---------------------------------------------------------------------------------------------------------------

Have a good day :)

Answer:

1. 31.4m

2. 26ft

3. 25.12 cm

4. 50.24 in

5. 15.71 meters

6. 380.13 inches

7. 7.5meters

8. 47.1 feet

Step-by-step explanation:

to find the circumference you do 2 x 3.14 x radius

to find the area you do radius squared x 3.14

PLSS HELPP MMEEE FASSTT

Answers

Answer:

12313

Step-by-step explanation:

Answer:

12313

Step-by-step explanation:

i think so

Find the probability of rolling a 6 and spinning a consonant on a single roll of the cube and
a single spin of the spinner. Use probability notation. State your result as a reduced fraction
and as a percent.

Answers

Its not letting me come to for some reason so I’m doing this on answers

But I think u need a little more info for someone to answer this maybe a picture would help

I WILL GIVE BRAINLIEST!!!
Which statement best describes the mean of the data listed below?
10, 7, 9, 5, 8, 6, 7, 3, 10, 5, 7

The middle value of the ordered data set is 7.

The value that occurs most often in the set is 7.

The difference between the smallest value and the largest value is 7.

The sum of all the data values divided by the number of data values is 7.

Answers

Answer:

4. The sum of all the data values divided by the number of data values is 7.

In short, the mean of the data is the average.

can i get a picture of the question so i can understand a bit more?
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