Mathematics Middle School

PLEASE HELP!
Describe and correct the error in finding a solution of the equation in two variables.
y= 3x + 2; (5,1)
5 (? right on top of this) = 3 (1) + 2
5 = 5
So, (5,1) is a solution.

Answers

Answer 1

Answer:

Step-by-step explanation:

y=3x+2

3x+2=y

3x/3=y/3

2=y/3

2=6/3

Answer 2
The answer is 2=6/3 !

Related Questions

please help me on this

Answers

Answer:

223.25 - 11.25 - 26.50p = 0

p = 8

Step-by-step explanation:

223.25 - 11.25 - 26.50p = 0

212 - 26.50p = 0

-26.50p = -212

26.50p = 212

p = 212/26.50

p = 8

Gustavo pays $12.64 to download 8 songs. Each song costs him the same amount. Estimate the amount he pays to download each song.​

Answers

Answer:

1.58

Step-by-step explanation:

The answer should be 1.58 because 12.64 divided by 8 is 1.58

1.58

if you divide 12.64 by 8 you’ll get 1.58

What is the volume of the prism? 100 yd cubed


150 yd cubed


200 yd cubed


250 yd cubed

Answers

Answer: the answer should be 200 yd cubed

Step-by-step explanation:

5x4x10=200

The answer is B 200 yd cubed


Explanation: because you multiply 5x4 you get 20 and then you multiply 20x10 = 200

Please help, will give brainliest if possible.

Answers

Answer:

Step-by-step explanation:

Directions

Open the compass legs to some radius more than 1/2 the length of WX. It does not matter what the exact value as long as it is more than 1/2 way.

Put the pin end on X and draw an arc with the penciled end. Make sure that the arc you are drawing is both above and below the line WX.

Transfer the pin end to W and draw another arc so that the new arc intersects the first arc drawn from x. Make sure that the new arc is above and below the line WX

With the straight edge as a guide, draw a line between the two intersected arcs. Where lines intersect each other is where the perpendicular bisector intersects WX

Which quadrilateral can be classified as a trapezoid?

Answers

Answer:

a trapezoid is a shape with only two sides that are parallel. so the right answer is the light green shape with only two sides having arrows, the top and bottom. i hope that helps, have an amazing day! (:

Step-by-step explanation:

These two parts are equal in length. The attributes indicate that a rhombus can also be classified as a parallelogram and all parallelograms are also classified as a trapezoid. Since opposite side are parallel, we can classify the rectangle as a parallelogram and a trapezoid.

Kenya dose the pole vault for her school's track team. Her record is 2 meters 86 centimetres. How many millimetres is Kenya's record?

Answers

Answer:

2860

Step-by-step explanation:

First, convert 2 meters into cm and then convert to mm. m to cm+200cm cm-mm= 2000. Then turn 86 centimetres into mm which is 860 mm. Lastly 2000+860=2860. Hope this helps

How do I make a mixed number into an improper fraction?

Answers

Answer:

Multiply the whole number with the denominator of the proper fraction. Add the numerator of the proper fraction to this product to obtain the numerator of the improper fraction.

Explanation:

Let us convert 3¼ into an improper fraction.

Numerator of the improper fraction = (3 × 4) + 1 = 13

The denominator of the fraction will stay the same = 4

Hence 3¼ converted into an improper fraction will be 13/4

Which statement is correct? pls i need help :(

Answers

Answer:

the correct option is: a!

Step-by-step explanation:

3 < 15 <4

a is correct !! because i know it is

Can You Please Help Me With This Question?

The price of a cell phone is usually $250.
Manuel’s stepbrother buys the same cell phone for 75% of the usual price. How much did he pay?

Answers

$187.5

hope this helps!

Answer:

187.5

Step-by-step explanation

divide 75 and 50 then by the total value multiply it

What is the area of this figure?

Enter your answer in the box.


_ m²

Answers

Answer:

9(5) + (1/2)(9)(8) = 45 + 36 = 71 m²

81m² is the total area of the figure.

Janey paints a block of wood with gold glitter for an art project. The block measures 8 inches by 10 inches by 20 inches.

After she's done, she decides to make two blocks by cutting through the block on the red line. She still wants each block to be covered with gold glitter.


What is the total area of the cut surfaces she still needs to paint?

Answer the questions to find out.

1. What is the shape of each cut surface? What are its dimensions?

Answers

the answer is 160 or one hundred sixty.

Answer:

160

Step-by-step explanation:

What is the scale factor from Figure A to Figure B?

Answers

Answer:

figure B is ×3 larger than figure A

Step-by-step explanation:

if you divide the lengths of the sides of figure B by the sides of figure A, you will get 3.

Find the length of two common sides:


Height of A = 2

Height of B = 6


scale factor from A to B = 6/2 = 3


answer: scale factor = 3

School is starting, and the teacher is giving each student 2 new pencils. She has 8 rows with 4 desks in each row. Which method (s) below will show her how many pencils she will need?

A. 2 x 8 + 16, 16 x 4
B. 2 x 4 + 8, 8 x 8
C. 4 x 8 + 32, 2 x 32

Answers

Answer:B

Step-by-step explanation:

(B) is the answer for the question

a company hires full-time and part-time workers. The ratio of full-time to part-time workers employed at the company is 10:3. Kaylee knows there are 364 total workers at the company. Determine how many more of the workers are full-time than part-time.

Answers

Part time = 280

Full time = 84

Step-by-step explanation:

It says it’s 10:3

So I divided 364 into 13 parts so I would be able to put them in 10/3 parts

Each part has 28 so I times it based on what number I needed in the ratio

Please HELP I WILL GIVE BRAINLYEST and 20 points

Answers

Answer:

option 1 might be the best one

Step-by-step explanation:

After all my work I conclude that it is the first one

Can someone pls help i need to have this done tonight pls helppp (ill give brainliest)
PLS HELP MEEEE ( 50 POINTS)

Answers

Dot plots are used to show data by placing a dot above the number on the number line. To graph data on a dot plot, stack the dots on top of each other. Histograms are often used for large data sets that cover a greater range and data groups are categorized into intervals called bins. The first graph is asymmetric, the second graph is normal, and the third is uniform. I hope this helps!! good luck studying :)

Evaluate the expression 4x^3 for each value of x. a. 1, b. 2, c. 1/2

Answers

Answer:

a. 4, b. 32, c. 1/2

Step-by-step explanation:

a. 4 * (1 *1 *1) = 4

b. 4 * (2 * 2 * 2) = 4 * 8 = 32

c. 4 * (1/2 * 1/2 * 1/2) = 4 * 1/8 = 1/2

Answer:

down below - hope this helped :)

Step-by-step explanation:

a.

4 x (1 x1 x1) = 4

b.

4 x (2 x 2 x 2) = 4 x 8 = 32

c.

4 x (1/2 x 1/2 x 1/2) = 4 x 1/8 = 1/2

The area of a square floor on a scale drawing is 16 square centimeters, and the scale drawing is 1 centimeter:3 ft. What is the area of the actual floor? What is the ratio of the area in the drawing to the actual area?

Answers

Answer:

First of all you need to identify the scale drawing that is 1cm: 3ft so if it is 16 you multiply 16 times 3 which is 48. Then, you just multiply 16cm( 1cm/3ft) making the answer to be 5.3333 or 5.3 so hope this is for the area of the actual floor and hope this answer help you so sorry if i did not get it right because i did my best.

Step-by-step explanation: sorry if i did not answer the second part if the question but thanks for helping you in one part of the question.

Find the mistake: two-step equations
5 stars for correct asnwer- there r three choices- step 1, step 2, and "Ling did not make a mistake."
have a great day byeeee

Answers

Ling did not make a mistake

Answer:

Ling did not make a mistake.

Step-by-step explanation:

[tex]\bf -2q+11=-32[/tex]

[tex]\bf -2q=-43[/tex] (Step 1)

[tex]\bf q=21.5[/tex] (Step 2)

First step, Ling subtracted 11 from both sides which's correct.

Then she divided each side of the equation by -2. correct*

Hence, Ling didn't make a mistake.

_____________________

Ashley is going to build some large wooden storage boxes. The boxes are shaped like rectangular prisms, as shown below. She wants to cover all the sides of each box with special wallpaper. If she has a total of 1152 ft squared of wallpaper, how many boxes can she cover?

Answers

Answer: 9 boxes

Step-by-step explanation:

Please Will give brainliest

Answers

Answer:

The second one

Step-by-step explanation:

the median is used to workout the average and because the highest is in the middle and it builds up to it, it works best.

Answer: the answer is the second one

Step-by-step explanation: the median is finding the total average rate . I can see that the highest line is in the middle, so it is going to get higher I think so it is suitable to be the best measure of center . Hope this helps you . Thanks .

i need help pleaseeeeeeeeeeeeeeeee!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

2/12

Step-by-step explanation:

You have to divide 2/3 by 4 which is the same as multiply 2/3 with 1/4.

This will give you 2/12

2/12 bc one of my classmate( A smart one answered but don’t explain so sorry if you need an explanation)

Answer the question below

Answers

Answer:

B

Step-by-step explanation:

Answer:

its B i think

Step-by-step explanation:

wait, have you smiled today? its very important:)

HELP! 6th-grade math PLEASE HELP!

Answers

first, find the area of prism ll by multiplying 5/2, 9/4, and 2

this will result in 45/4, or 11.25

now, you have to figure out how many small cubes will fit inside prism ll

we know that the side lengths of the small cubes are 1/4, and since cubes have equal side lengths, you can multiply 1/4, 1/4, and 1/4 to find the area

this will result in 1/64

divide the area of prism ll, 11.25, by the area of the small cubes, 1/64, to get 720

then, do the same thing for prism l

multiply 7/4, 3/2, and 5/4 to get 105/32

divide this by the previous 1/64 to get 210

lastly, to determine how many more small cubes can fit into prism ll, subtract 210 from 720

720-210=510

final answer: 510 cubes

hope this helped!!

show how to do all 3 for brainliest

Answers

Answer:

14. It is 116.80

because the formula is π x r² so 6.1² x 3.14= 116.8394

15. It is 50.20

because the formula is r²*3.14 and the radius if half of the diameter and the diameter is 8 and half of it would be 4 and 4²=16 so 16*3.14= 50.24

16. probably 78.5

5²*3.14

Step-by-step explanation:

if its right can i have the brainliest

Nothing is the correct Answer

can someone help ? this was due quite a while ago (real answers only)

Answers

Answer:

1.) 45  2.) 93   3.) 80

Step-by-step explanation:

Answer:

Triangle 1: 45

Triangle 2: 93

Triangle 3: 80

Step-by-step explanation:

All triangle angles must equal 180 degrees!!!

Now lets solve :)

Triangle 1

45 + 90 + x = 180

135 + x = 180

180 - 135 = 45

x = 45 :)

Triangle 2

36 + 51 + x = 180

87 + x = 180

180 - 87 = 93

x = 93 :)

Triangle 3

63 + 37 + x = 180

100 + x = 180

180 - 100 = 80

x = 80

Have an amazing day!!

Please rate and mark brainliest!!

Can anyone help me pls ( I'll give brainliest)

Stephanie is helping her band collect money to fund a field trip.
The band decided to sell boxes of chocolate bars. Each bar sells
for $1.50 and each box contains 20 bars. Below is a partial table
of monies collected for different numbers of boxes sold.
Boxes Sold (b) Money Collected (m)
1 $30
2 $60
3 $90
4 $120
5 $150
6 $180
7 $210
8 $240

1.) Complete the table above for all values of m.

2.) Which is the independent variable?

3.) Which is the dependent variable?


4.) Write an equation for the amount of money, m, that will be
collected if b boxes of chocolate bars are sold.

5.) Graph the equation using the ordered pairs from the table
above.
(Don’t forget to label your axes and increments!)

6.) How much money will be collected if 100 boxes of chocolate
bars are sold?

7.) The band collected $1530 from chocolate bar sales. How
many boxes did they sell?

Answers

Answer:

O P=20($1.50)

They will make $3,000 if they sell 100 boxes of chocolates

Step-by-step explanation:

It is multiplication because it is $1.50 per each chocolate bar, and since there is 20 per box, we need to find the profit for the entire box

using that info, we find that each box of chocolates is 30 dollars

multiplied by 100 boxes is $3000.

(think i already answered this ?)

Hey , Please Answer This Question With Work Shown And Explination !
*50 points *

Answers

Answer:

4. $24.13

5. 8 years

Step-by-step explanation:

4. 44.4 divided by 1.85

5. 2.8 divided by 0.35

i’m not 100% sure about this, but:
4. 8
5. 15.6

Can anyone solve this?

Answers

Answer:

324 inches squared

Step-by-step explanation:

The question is most likely asking for the surface area of the rectangular prism.

The Formula for this is:

2(wl+hl+hw)

h = 6in

w = 5in

l = 12in

Plug in the varibles:

2( 5*12 + 6*12 + 6*5)

Simplify:

2( 60 + 72 + 30) =

2(162) =

324

So the answer is 324 inches squared!

Hope this helps! :)

Answer:

The surface area of the rectangular prism is:  324

The volume of the rectangular prism is:  360

Step-by-step explanation:

Surface area is calculated with the formula:

2(wl + hl + hw)

w*l = 6*12 = 72

h*l = 5*12 = 60

h*w = 5*6 = 30

Now add up 72, 60, and 30.

72+60+30 = 162.

This leaves us with the equation:

2(162)

So, we multiply 2 and 162 to get the surface area.

2*162 = 324.

For the volume, we multiply the length, width, and height altogther.

l*w*h

So, we plug in the values, and multiply:

12*6*5 = 360

The volume is 360 in^3

factorise: 4x(a4+x2)−a2−x2

Answers

Answer:

Step-by-step explanation:

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