Mathematics Middle School

HELP WILL MARK BRAINLIEST I NEED THIS ASAP!!!!!!!


To solve 4.2c = 54.6, you must do which of the following? Choose the correct answer.

a
Multiply 54.6 to both sides of the equal sign
b
Multiply 4.2 to both sides of the equal sign
c
Divide 54.6 to both sides of the equal sign
d
Divide 4.2 to both sides of the equal sign

Answers

Answer 1

Answer:

d

Divide 4.2 to both sides of the equal sign

Step-by-step explanation:

Answer 2
Answer: D

Step-By-Step-Explanation: I am right

Related Questions

HEY THERE PLZ HELP WITH THE EQUATION!!! THANKS IF U ANSWER
Suppose that a phone that originally sold for $800 loses of its value each year after it is released. After 2 years, how much is the phone worth? Write an equation for the value of the phone, , years after it is released.

Answers

Answer:

V=800-Y

V=Value

Y=years

what is the answer 8s + 8 + 3st + 4s

Answers

Answer:

12s + 8 + 3st

Step-by-step explanation:

Combine like terms:

8s + 4s = 12s

8

3sr

Which of the following expressions represent 15% tip on a $20 meal? Which represents the total bill? **Select all that apply**. Explain your reasoning for the choices you select.

A.) 1520
B.) 20+0.1520
C.) 1.1520
D.) 1510020

Answers

Answer:

15/100 * 20, because the meal is 20 dollars and to find the percent of something you divide it with 100 so you will divide 15 with 100 and you’ll get 0.15. Then you will times it with the amount the meal cost because thats the charge. So 0.15•20 and you’ll get $3. A 15% tip for a $20 meal is $3.

Find the area of the shaded region. Use 3.14 for π. Round to the nearest tenth if necessary. Whats the label?

Answers

Answer:

460

Step-by-step explanation:

yeg

Answer:

Step-by-step explanation:

3.14(10²) - 3.14(6²)

3.14(10² - 6²)

3.14(100 - 36)

3.14(64)

200.96

201

i think

Help me PLEASEEEEEEEEEEEE :C

Answers

Answer:

A. 525 in squared

Step-by-step explanation:

Fundamentally, the area of a parellelogram such as this can be calculated the same way the area of a normal rectangle is calculated: Length x Width.

Thus,

(27 + 8) x 15 = Area

35 x 15 = Area

525 = Area

Don't forget your units! (Inches squared)

Answer: The answer is 525

Find the measure of ∠YOZ by answering the questions.

1. Find the measure of ∠WOV. Which angle relationship did you use?
2. Now find the measure of ∠YOZ. Which angle relationship did you use?
3. Check your answer by using another strategy to find the measure of ∠YOZ. Describe your strategy, and show that it gives the same measure for ∠YOZ.

Answers

Answer:

3

Step-by-step explanation:

The answer is the 3rd one

Mark hits a tennis ball into the air. He uses the equation shown to approximate the
height, h, in feet, of the ball t seconds after he hits it.
h = -1612 + 88t + 4
What does the 4 represent in Mark's equation?
A.
The ball was in the air for a total of 4 seconds.
B.
The ball landed 4 feet away from where Mark hit it.
C.
The ball was 4 feet above the ground when Mark hit it.
D.
The ball reached its maximum height 4 seconds after Mark hit it.

Answers

It’s D
Trust me it the right answer
i thinks it’s B i’m not really sure i’m slow i know it’s not D because t represents the seconds and in the equation it already has t

5. Which would be a good first step to use to solve this system?



1st equation: y = 6x + 4

2nd equation: 5x + 2y = 12



A. Multiply the first equation by 2, and add the result to the second equation.

B. Substitute 5x + 12 for for y in first equation.

C. Substitute 6x + 4 for x in the second equation.

D. Substitute 6x + 4 for y in the second equation.

Answers

Answer:

d. substitute 6x +4 for y in the second equation

help pls it due today and i.d.k. what to do the one that said mean thats is the understanding o i but i dont understand it

Answers

to find the mean you add up all of the numbers that you see, then divide that total by the numbers you divided. in this case you would add 3+5+7+10+10+4+7+5+8+10+6. you should get 75. you added 11 numbers together so you would divide 75 by 11 to get 6.8
3+5+7+10+10+4+7+5+8+10+6=75

75/11=6.81

you add all the numbers together then you divide the answer by how many numbers you have


i hope this helps

Please help I will reward brainliest

Answers

Answer:

Step-by-step explanation:

Supplementary means 2 angles adding up to 180 or the line of AEF in this case

so supplementary pairs like DEH and HEF would add up to 180, same with DEJ and JEF

Answer:

Angle DEH and angle HEJ and HEK and KEF add up to 180 degrees

Step-by-step explanation:

Two angles are called complementary if their measures add to 90 degrees, and called supplementary if their measures add to 180 degrees. ... For example, a 50-degree angle and a 40-degree angle are complementary; a 60-degree angle and a 120-degree angle are supplementary.

Hope this helped! Have a nice day! Plz mark as brainliest!!!

-XxDeathshotxX

Which comparison is not correct?
-8 < |-4|
|-2| < |-9|
|-7| > -9 |
8| > |-9|

Answers

Answer:

the 2 one is wrong

Step-by-step explanation:

the 2 would be greater than the 9 sense both the numbers are negative and the bigger the negative number is the less amount it is so -9 is smaller than -2

i need help, this is over due and i need to get it done and I have no ide what I'm doing

Answers

Answer:

I have the answers, we did this homework.

The first question is B. The second question is D. The third question is C. And the fourth question is D. Hope this helped.

0.5% of what number is 5

Answers

Answer:

1,000

Step-by-step explanation:

5/10ths of a percent of what number is 5-which would be 1000

Answer:1000...I think

Step-by-step explanation: 0.5 can go into 100, 200 times 5 times 200=1000

Help me answer image sent. (I zoomed the graph so you can see it better.)

Answers

Answer:

1. K

2. F

3. B

4. E

5. H

6. J

Answer:

1=E

2=F

3=B

4=G

5=H

6=J

Step-by-step explanation:

JUST TRYING TO HELP HAV A GUD DAY

Which of the following angles can be added together to create 177°? Explain your answer using words.

Answers

First you’d look for ones units that add up to 7, so in this case (5)4 and (6)3

Add 54 and 63 to get 117

Subtract 117 from 177 to get 60

25 and 35 equal 60 (I just know that from common knowledge I have no idea how to explain that in words)

So 25 + 35 + 54 + 63 = 177

It takes Marvin 2/3 of an hour to to mow 1/2 of his lawn. If Marvin continues mowing at the same rate, how long will it take him to mow his entire lawn?? ( Will mark brainliest)

Answers

Answer:

2/3-=40 minutes to mow half his yard

Step-by-step explanation:

80- minutes to mow full yard

Answer: 1hr 20 minutes

Step-by-step explanation:

PLEASE HELPPPP!!!!!!

Answers

The correct answer is A no explanation needed it’s just A
It’s A those are the only outcomes it could possibly be.

here is 1-12 of the assignment

Answers

1. 5m-6 m=7
5(7)-6
35-6
Answer: 29

2. 4m+t (t=2) (m=7)
4(7)+2
28+2
Answer: 30

3. r/t (r=8) (6=2)
8/2
Answer: 4

4. m*t (m=7) (t=2)
7*2
Answer: 14

5. 5t+2m
5(2)+2(7)
10+2(7)
10+14
Answer: 24

6. r*m
8*7
Answer: 56

7. 3m-5t
3(7)-5(2)
21-10
Answer: 11

8. m*r/t
7(8)/2
56/2
Answer: 28

10. n+16
The sum of a number n and 16.
11. 3.2n
The product of 3.2 and a number n.
12. 25.6-n

I know I already send this all to you, but if anyone else needs help here’s the answers.
Just read this guys ^
|

:> I need hep with this math thingyyyyyyyyyyyy

Answers

A. 65 degrees F
Explanation:
to find the mean, add all numbers in the data set and divide the sum by how many numbers there are. using this formula, you get 65.

Answer:

65 is the answer

Step-by-step explanation:

17+39+29+81+87+99+103=455= A). 65

I hope this helps.

A lemur weighs 4.2 kilograms. How many grams does the lemur weigh? Use the number of zeros of the product when multiplying a number by a power of 10 to help you.

42 grams
42,000 grams
420 grams
4,200 grams

Answers

4.2 kilograms to grams is 4,200

Answer:

Hi i am in 1 grade but i hope it helps

Step-by-step explanation:

I think it is 4,200

Help!! check screenshot below.

Answers

Answer:

x < 7

Step-by-step explanation:

7x < 49 (Given)

x < 7 (Divided 7 on both sides)

Answer:

Answer. x < 7

Step-by-step explanation:

hope this helps :>

Write the equation of the line in slope-intercept form using y=mx+b​

Answers

Answer:

y = 1/2x+2

Step-by-step explanation:

First find the slope using y1-y2 over x2-x1 picking two points, the two I am using are (0,2) and (2,3). Once I use the formula, the slope is 1/2. The Y intercept (b) is where the line intersects it. (0,2) You know it is the y intercept because the x coordinate is 0. So the final equation would be y=(slope)x+ (y-int) so FINAL ANSWER: y=1/2x+2

A flat-screen television costs $724.89 when it is new. The value of the television is expected to change by −12 3/5% per year. What is the expected value, to the nearest cent, of the television after 4 years?

Answers

653 no explanation needed it’s just 653

The solution is $ 422.98

The expected value of the television after 4 years is $ 422.98

What is exponential growth factor?

The exponential growth or decay formula is given by

x ( t ) = x₀ × ( 1 + r )ⁿ

x ( t ) is the value at time t

x₀ is the initial value at time t = 0.

r is the growth rate when r>0 or decay rate when r<0, in percent

t is the time in discrete intervals and selected time units

Given data ,

Let the initial amount of the television be x₀

The value of x₀ = $ 724.89

Now , value of the television is expected to change by -12 3/5 % per year

So , the exponential decay rate of the television is r = -12 3/5 %

The rate r = -63/5 %

The rate r = -12.6 %

The number of years t = 4 years

So , the exponential decay rate of the television after 4 years is calculated from the formula

x ( t ) = x₀ × ( 1 + r )ⁿ

Substituting the values in the equation , we get

x ( 4 ) = 724.89 ( 1 - ( 12.6/100 ) )⁴

On simplifying the equation , we get

x ( 4 ) = 724.89 ( 1 - 0.126 )⁴

x ( 4 ) = 724.89 ( 0.874 )⁴

x ( 4 ) = 724.89 x 0.583506543376

x ( 4 ) = $ 422.978

So , rounding to the nearest cent , we get

The value of x ( 4 ) = $ 422.98

Hence , The expected value of the television after 4 years is $ 422.98

To learn more about exponential growth factor click :

https://brainly.com/question/13674608

#SPJ2

Answer the following questions.

Answers

Answer:

Where is the question to answer on the picture?

Answer:

1. $50,000

2. $75,000

3. $100,000

4. $125,000

sorry this is all I have

12 gallons of water are used to completely fill 5 fish tanks. If each tank holds the same amount of water, how many gallons will each tank hold?

Express your answer as a mixed number.

Answers

Answer:

2.4 gallons/tank

Step-by-step explanation:

12/5=2.4 gallons

I think is 2 4/10 or 2 2/5 hope this helps

What is the area of a circle with a radius of 20 inches?

10π square inches
100π square inches
40π square inches
400π square inches

Answers

400pi square inches

Step-by-step explanation:

20×20×3.14= I got 1256 inches ²

Pls help due in 30 mins

Answers

Answer:

1. is 151 degrees

2. 45 degrees

3. M<G is 63 degrees

M<H is 27 degrees

14. 90 degrees

13. 36 degrees

Step-by-step explanation:

I hope that helped :)

1.151 degrees and 2 is the other ones

Louis wants to carpet the rectangular floor of his basement. The basement has an area of 507 square feet. The width of the basement is 1/3 its length.

What is the length of Louis's basement?

plz help i stayed all night thinking about this but still it doesn't click in my brain

Answers

Divide 507 square feet by the width of the basement
507 ÷
1
3
=
1521
Calculation steps:

507 ÷
1
3
= 507 ÷
1
3
=
507
1
×
3
1
=
507 × 3
1 × 1
= 1521

plz answer
WILL GIVE BRAINLIEST

Answers

Answer:

Its the number 3

Step-by-step explanation:

Answer:A

Step-by-step explanation:

Please give brainliest i only need a few more to rank up

Write an equivalent expression for (1.5 + k) +2.25

Answers

Answer:

k+3.75

Step-by-step explanation:

The equation can be simplified to k+3.75:

k+1.5+2.25

k+3.75

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