MATHEMATICS MIDDLE SCHOOL

3x - 2y when x = 2 and y = 10​

Answers

Answer 1
Answer:

Answer:

the answer is -14

Step-by-step explanation:

3x - 2y

3(2)-2(10)

6-20

6+-20

-14

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Approximately 4/5 of U.S homeowners have a cell phone. what percent of homeowners do not have a cell phone

Answers

The percent of homeowners that do not have a cellphone is 20%.

What are percentages?

A percentage is a number or ratio that can be expressed as a fraction of 100. If we have to calculate the percent of a number, divide the number by the whole and multiply by 100. Hence, the percentage means, a part per hundred. The word percent means per 100. It is represented by the symbol “%”

Given here, Approximately 4/5 of U.S homeowners have a cell phone.

Therefore, the fraction of homeowners that do not own a cell phone is        1-4/5=1/5 and thus 1/5×100 = 20%

Hence, The percent of homeowners that do not have a cellphone is 20%.

Learn more about Percentages here:

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Divide 4 by 5 to get .8 Move the decimal two places to get 80%. There is 20% left so 20% percent of homeowners do not have a cell phone 

A, b and c Share the rent in a ratio of 4:3:2. The rent is £216. How much does a pay? 5 Miles= 8km how many km in 40 miles?

Answers

40 times 8 is 320. 320 is equal to £216. 216 / 320 is 0.675   A pays 320 / 4 B pays 320 / 3 C pays 320 / 2. A is 80 times 0.675 which is 54. A pays £54.

The equation y=2/3x describes the number of calls y a salesperson makes in x minutes. How does y change as x changes?

Answers

Y is 2/3 of x because thats how math works

You decide to open a small business in the Bronx. You borrow $15,000 from the bank at an annual interest rate of 7% for 24 months. What is the amount of interest you will pay on this loan?

Answers

Answer:

$2,100 interest

Step-by-step explanation:

15,000×7% = 1,050

1,050×2 = 2,100

Answer:

15000x2x7/100 = 210

Step-by-step explanation:

C=3.14d solve for d

Answers

you would divide both sides by 3.14, to get d by itself.  so c/3.14=d
3.14d=c\ \ \ \ |divide\ both\ sides\ by\ 3.14\n\nd=(c)/(3.14)\n\nd=(100c)/(314)\n\nd=(50c)/(157)

The soccer team lost 5 games last season and only 2 games this season. What was the percent decrease in losses?

Answers

Answer: 60%

Step-by-step explanation:

Given: The number of games lost by the soccer team last year =5

The number of games lost by the soccer team this year= 2

The decrease in losses=5-2=3

The percent decrease in losses is given by :-

\text{Percent decrease}=\frac{\text{Decrease in losses}}{\text{Losses in last year}}*100\n\n\Rightarrow\ \text{Percent decrease}=(3)/(50)*100=60\%

Hence, the  percent decrease in losses is 60%.
The amount decreased over the original
(5-2)/5
3/5
60% decrease
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