Mathematics Middle School

Help :

6. Solve the following equations:

a. x + 8 = 28

b. y - 4 = 30

c. s + 2s = 36

d. t - t + 4t = 16

e. 5a = 15

f. 8x - x = 21

Answers

Answer 1

A) x + 8 = 28

x = 28 - 8

x = 20

B) y - 4 = 30

y = 30 + 4

y = 34

C) s + 2s = 36

3s = 36

s = 12

D) t - t + 4t = 16

4t = 16

t = 4

E) 5a = 15

a = 3

F) 8x - x = 21

7x = 21

x = 3

[tex] \\ [/tex]

KemberlyJ

Related Questions

Choose the equation that represents the graph.

Answers

Answer:

y = 1x + 3

Step-by-step explanation:

the slope is 1 and the y intercept is 3

This table shows some college costs. How much more is tuition than the cost of fees and room and board? (table pic attached)

Answers

Answer:

7x +72

Step-by-step explanation:

Tuition - (room and board)

8x+75 - ( x+3)

Distribute the minus sign

8x+75 - x-3

7x +72

8x+3 = (x) =12 because if 8x + 75 means that x alone will still be 8 the x + 3 +5 =16

6^14 y^8/6^9 y^3 = ???

Answers

Answer:

Step-by-step explanation:

Es cero

Answer:

I think its 7776v^11

Step-by-step explanation:

Last month David, a sales representative, sold $5000 worth of medicines and received a commission of 30% on his sales. How much money did David earn as commission last month?
A.$3,000
B.$2,000
C.$1,500
D.$1,000

Answers

Answer:

C.

Step-by-step explanation:

30% of 5,000 is 1,500.

C is the answer cause 30% of 5000 is 1500

A coordinate grid with 4 lines. Line A passes through (0, 5) and (4, 3.75). Line B passes through (3.75, 0) and (0, negative 5). Line C passes through (0, negative 5) and (negative 3.75, 0). Line D passes through (negative 3.75, 0) and (0, 5).
Which line represents the linear equation
–3y = 15 – 4x?

The equation –3y = 15 – 4x rewritten in slope-intercept form is

Answers

Answer:

C

Step-by-step explanation:

im pretty sure

Answer:

9

Step-by-step explanation:

Yes now just solve this for brainliest unless your a copy ;)

Answers

Answer:

-30 - 6 = -36

-36/-4 = 9 So it wouldnt work

0 - 6 = -6

-6/-4 = 1.5 It won't work

-48 - 6 = -54

-54/-4 13.5 Wouldn't work

-18 - 6 = -24

-24/-4 = 6

Looks like -18 is the answer

-18 Is the answer :D

Answer:

-18

Step-by-step explanation:

Just try all of them. I started bottom up.

-18 - 6 / -4 = -24 / -4 = 6

YOU BEST MARK ME THE BRAINLIEST. I got them brains.

Topic: Linear Equations in the Coordinate Plane
Question: Graft the function y = x + 2

Answers

Answer:

9

Step-by-step explanation:

0

Determine the length of AB¯¯¯¯¯¯¯¯. Write your answer in simplest form.

pls help i need the answer soon

Answers

Answer:

[tex]x = 2.4[/tex]

Step-by-step explanation:

Step 1:  Find the length of AB

[tex]\frac{ED}{EA} = \frac{EC}{EB}[/tex]

[tex]\frac{15}{12} = \frac{18}{12+x}[/tex]

Cross Multiply

[tex]15(12+x) = 12(18)[/tex]

Distribute

[tex](15*12)+(15*x) = 216[/tex]

[tex]180 + 15x = 216[/tex]

Divide

[tex]15x / 15 = 36 / 15[/tex]

[tex]x = 2.4[/tex]

Answer:  [tex]x = 2.4[/tex]

X=2.4 yeah because you know

Math problem for high school

Answers

Answer:

50/3

Step-by-step explanation:

area of triangle = 10

area of circle = 10

area of triangle + area of circle = 20

The white sector of the circle has central angle 60°.

Its area is 1/6 the area of the circle.

To find the gray area, you must subtract the white area from the area of the circle and also subtract the white area from the area of the triangle. Two times the white area is 1/3 the area of the circle.

gray area = 20 - (1/3)10

gray area = 20 - 10/3

gray area = 60/3 - 10/3

gray area = 50/3

Answer:

The white sector of the circle = (1/6) (10) = 10/6 = 5/3

So....the grey area = 10 + 10 - 2 (5/3) = 20 - 10/3 = 60/3 - 10/3 = 50 / 3

MARK BRAINLIEST

There is a blueprint for a house that is a scale drawing for the entire house. One part of the house has a triangular base. The drawing of the width of the triangle is 4cm and the length is 6cm. If the width of the actual triangular structure is 18cm, what is the length and the area of the triangular structure?

Answers

Answer:https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-geometry/cc-7th-scale-drawings/v/scale-drawing-example-2

Step-by-step explanation:

this with help

Answer:

0

Step-by-step explanation:

99

IM SO SORRY PLEASE HELP ME!!!

Answers

Answer:B,D i think that's it

Step-by-step explanation: lmk if it was right or wrong

D for sure, and maybe E

PLEASE HELP!
What is the length of the shortest altitude in a triangle, if the lengths of the sides are 15 cm, 17 cm, 8 cm. Write answer in a common fraction in reduced form.

Answers

7.06 is the answer!!!!!
7.06 should be the answer

HURRY IM TIMED!! which inequality is represented by this graph?

Answers

Answer:

x<6 this is the answer because the circle is hallow (not including) and going left (less than)

Answer:

x<6

Step-by-step explanation:

Look at the way the blue arrow is pointing that means less than and the circle is open so it is not equal to the number 6.

Perry saved 4 twenty-dollar bills, 2 ten-dollar bills, 3 dimes, and 2 pennies. Before winter break, he bought a new racing video game for $49.86. How much money did Perry have left?

Answers

Answer:

[see answer below]

Step-by-step explanation:

"Perry saved 4 twenty-dollar bills, 2 ten-dollar bills, 3 dimes, and 2 pennies."

4 * 20 = 80

2 * 10 = 20

3 * 0.1 = 0.3

2 * 0.01 = 0.02

80 + 20 + 0.3 + 0.02 = $100.32

100.32 - 49.86 = 50.46

Hope this helps you.

Answer:

$50.46

Step-by-step explanation:

Mind uh... Answering my question?

Answers

Answer:

12 ounces

Step-by-step explanation:

[tex]3 \div 4 \\ = 0.75 [/tex]

1 pound = 16 ouncesmultiply the mass value by 16.

[tex]0.75 \times 16 \\ = 12[/tex]

Hope it is helpful....

Answer:

12 ounces

Step-by-step explanation:

1/3(3x-6)=2x please help

Answers

Answer:

-2

Step-by-step explanation:

In the picture

Answer:

x = -2

Step-by-step explanation:

1/3(3x - 6) = 2x

3x - 6 / 3 = 2x

9x - 6 = 6x

3x = -6

x = -2

La base de un rectangulo es doble que su altura Cuales son sus dimensiones si el perímetro mide 108 cm

Answers

Answer:

el ancho es

18

 pulgadas y la longitud es

2

×

18

=

36

 pulgadas.

Step-by-step explanation:

Answer:

36

Step-by-step explanation:

PLEASE HELP! If 2580 people watched one show and 2920 people watched another show. How many people need to watch the third show for there to be a 3000 people average attendance per show?

Answers

Answer:

3480

Step-by-step explanation:

Set it up so it looks like this.

(2580 + 2930 + x )/3 = 3000                Combine the terms on the left

(5510 + x) / 3 = 3000                              Multiply by 3

5510 + x = 9000                                    Subtract 5510

x = 9000 - 5510

x = 3490

Does that really work?

2580 + 2930 + 3490 = 9000

Which says it does work.

2,500 (maybe)

1st show=2580
2nd show=2920
Add(+)=5,500

1st and 2nd show=5,500
Average ppl=3000
Subtract (-)= 2,500

Answer:2,500 people

Will Mark Brainliest If Correct Answers! Need Some Help Please

Given the expression: 4x10 − 64x2

Part A: Rewrite the expression by factoring out the greatest common factor. (4 points)

Part B: Factor the entire expression completely. Show the steps of your work. (6 points)

Answers

Answer:

Step-by-step explanation:

a) 4x¹⁰ = 2² * x¹⁰

   64x² = 2⁶ *x²

GCF = 2² * x² = 4x²

b) 4x¹⁰ - 64x² = 4x²*(x⁸ - 16)

                  =4x² *[ (x⁴)² - 4²]

                  = 4x² * (x⁴ + 4) (x⁴ - 4)

                  = 4x² * (x⁴ + 4)* [(x²)²- 2²]

                  =4x² * (x⁴ + 4) * (x² + 2)(x² - 2)

                 

HELP PLEASE! Write and solve the equation: The squares are identical. What is the area of each square?

Answers

If a=4:

HOW TO FIND THE AREA

A=4a (formula)

A=4*4

A=16

If it's 100:

A=4*100

A=400

Answer:

They are congruent, simple.

Step-by-step explanation:

Complete the following sentences based on the graph of the function.

Answers

Answer:

1) Decreases

2) not constant

3) non-linear

4) >

5) 8

6) 5

OAmalOHopeO

• As x increases, y decreases
• The rate of change for y as a function of x is not constant, therefore the function is not linear
• For all values of x, the function value y > 0
• The y intercept of the graph is the function y=8
•When x=1 the function value of y=5

Dave and Bill were shooting free throws. Dave MADE 7 out of 15 free throws. Bill MISSED 6 out of 10 free throws. Who made the greatest fraction of free throws?

Answers

Answer:

Bill

Step-by-step explanation:

Bill-6/10=0.6 Dave-7/15=0.46

Bill has a greater average. Hence, Bill has the greater fraction.

Bill had a greater average

Please whoever knows they can solve this, help!

I have attached the question down below. Please explain in detail and diagrams if the question permits you to do so. Thank you. I will also be marking the brainiest.

Answers

I can’t see the question I think you forgot to upload it
explanation:

Answer:Can't see the question

Step-by-step explanation:

HELP I ONLY HAVE 5 MINUTES LEFT

Answers

Answer:

i=13

Step-by-step explanation:

i = 13 because it does

Write a ratio and a percent for the shaded figure.

Answers

Total Squares = 10 × 10

= 100

Shaded Squares = 100 - (6×6)

= 64

Non Shaded = 6 × 6

= 36

Now Ratio of shaded portion is 64:100

= 16:25

Percentage = 64/100 × 100

= 64%

Answered by Gauthmath must click thanks and mark brainliest

64 and 100 i hope it’s right I’m sorry

In triangle JKL, angle JKL is a right angle, KM and is an altitude. JL=8 and JM=2, find JK

Answers

Answer:

4

Step-by-step explanation:

I could be wrong, but I think it's 4. as JL divided by JM equals 4. Like I said, I could be wrong, but it's worth a shot.

Answer:

4?

Step-by-step explanation:

A person standing on a moving walkway travels 75 feet in 25 seconds. What equation represents this relationship? How many feet will the person travel in 10 seconds?

Answers

I found someone with the same question as you, good luck !
the person is travel 3 feet per second. and they will travel 30 feet in 10 seconds.

Mr. Tola’s bag contains 7 types of pencils. There are 2 green pencils, 3 blue pencils, and 2 pink pencils. Mr. Tola randomly picks one pencil out of the bag. If x represents the likelihood of probability, what is the probability (the chance) that Mr. Tola picks either a green or pink pencil? What is the probability he picks a blue pencil?

Answers

Answer:

First part: x = 4/7

Second part: x = 3/7

Step-by-step explanation:

First Answer is x=4/7
The Second answer is x=3/7

Find f'(x) (the derivative of f(x)) if f(x) = 7x'3 - 2x'2 + 4x - 5.
Option A: 21x^2-4x+4+C
Option B: 21 x^2-4x+4-5
Option C: 21 x^2-4x+4
Option D: 21x^2-4x+4-5/x

Answers

that would be the correct answer

Mrs. Singh made 372 cookies to put in gift boxes. She will put 20 cookies in each box. How many cookies will be left over?

Answers

Answer:

12

Step-by-step explanation:

372 : 20 = 18 (rest 12)

check

18 * 20 + 12 = 372

12 will be left over.
20 times 18 = 360
372-360 = 12
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