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3 years ago

22 is 40% of what number? 32 is 20% of what number?

Mathematics

1 answer:

Yuri [45]3 years ago

4 0

Answer:

22 is 40% of what number?

32 is 20% of what number?

160

Step-by-step explanation:

If 22 is 40% of a number you can divide 22 by 40 to find what one % would be.

22/40=.55

To find what the whole number is we can multiply that by 100, since we want 100% of the number we have is only 1%.

.55x100=55

Check:

40% of 55= 55x.4=22

Repeat this for the next problem.

32/20=1.6

1.6x100=160

Check:

160x.2=32

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Find the percent cost of the total spent on each equipment $36, fees $158, transportation $59

maksim [4K]

Answer: Therefore, Option 'A' is correct.

Step-By-Step explanation:

Since we have given that

Amount spent on equipment = $36

Amount spent on fees = $158

Amount spent on transportation = $59

Total amount spent by them is given by

$36+158+59=\$253$

Percent cost of equipment of the total amount is given by

$\frac{36}{253}\times 100=14.2\%$

Percent cost of fees of the total amount is given by

$\frac{158}{253}\times 100\\\\=62.45\%$

Percent cost of transportation of the total amount is given by

$\frac{59}{100}\times 100\\\\=23.3\%$

Hence, Percent cost of the total spent on each is

14%, 62%, 23%.

Therefore, Option 'A' is correct.

6 0

3 years ago

A bank loans a family $90,000 at 4.5% annual interest rate to purchase a house. The family agrees to pay the loan off by making

Naily [24]

Using it's formula, it is found that the monthly payment should be of $688.49 in order to pay off the debt in 15 years.

<h3>What is the monthly payment formula?</h3>

It is given by:

$A = P\frac{\frac{r}{12}\left(1 + \frac{r}{12}\right)^n}{\left(1 + \frac{r}{12}\right)^n - 1}$

In which:

P is the initial amount.

r is the interest rate.

n is the number of payments.

For this problem, the parameters are given as follows:

A = 90000, r = 0.045, n = 15 x 12 = 180.

Hence:

r/12 = 0.045/12 = 0.00375.

Then we solve for A to find the monthly payment, as follows.

$A = P\frac{\frac{r}{12}\left(1 + \frac{r}{12}\right)^n}{\left(1 + \frac{r}{12}\right)^n - 1}$

$A = 90000(0.00375)\frac{(1.00375)^{180}}{(1.00375)^{180} - 1}$

A = $688.49

More can be learned about the monthly payment formula at brainly.com/question/22846480

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4 0

2 years ago

Which expressions are equivalent to x7? There may be more than one correct answer. Select all that apply. (x21)1/3 x^15/x^8 x^21

Viktor [21]

Answer:

x^15/x^8 = x^7

x^3⋅x^4 = x^7

(x^21)1/3 = x^7

Step-by-step explanation:

7 0

3 years ago

Which is bigger: 7/48 or 9/20?

Romashka-Z-Leto [24]

7/48 is the bigger one

8 0

3 years ago

Read 2 more answers

The number of telephone calls that arrive at a phoneexchange is often modeled as a Poisson random variable. Assumethat on the av

Elza [17]

Answer:

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7 0

4 years ago