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2 years ago

PLEASE HELP ME!!!!

Mathematics

1 answer:

VARVARA [1.3K]2 years ago

3 0

Answer:

Step-by-step explanation:

MARK BRAINLIEST PLEASE ☺️☺️

First you multiply 20 by .15 and you get 3. Subtract 3 by 20 and you get 17. Now multiply $17 by 30 and you get 510. She spent $510 on 30 calculators

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WILL GIVE BRAINLIEST! BUT YOU MUST EXPLAIN<br><br> explain clearly ...

aleksandr82 [10.1K]

Answer:

Step-by-step explanation:

Add all numbers then divide by 6 (Add all numbers including 94 then divide by six to get your answer)

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2 years ago

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1.)A rectangle has an area of 72 square centimeters and the length is twice the width. The perimeter of the rectangle

Greeley [361]

area = L x w = 72

L = 2w

72 = 2w*w = 2w^2

divide by 2

36 = w^2

w = sqrt(36) = 6

l = 2*6 =12

perimeter = 2L +2W = 2*12 + 2*6 = 24+12 = 36

sqrt(40)= 6.324555 cm ( round to 6.32 )

6.32 - 4 = 2.32 cm original length of a side

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3 years ago

Help!<br> Change 2/5<br> to a percent.

nalin [4]

Answer:

40%

Step-by-step explanation:

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2 years ago

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What is √75 in simplest form? A. 25√3 B. 3√5 C 5√3 D. 5√50

umka21 [38]

Answer:

Step-by-step explanation:

The square root of 75 is approximately 8.66025 or 5√3 in radical form. The factors of 75 can help in finding its square root.

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2 years ago

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$765.13 is deposited at the end of each month for 3 years in an account paying 2% Interest compounded monthly. Find the final am

Crank

Answer:

Option B.

Step-by-step explanation:

The future value formula, for an annuity, is:

$FV = \frac{P((1+r)^{n} - 1)}{r}$

An annuity means that a number of payments happen during the period(an year, for example).

P is the value of the deposit, r is the interest rate, as a decimal, and n is the number of deposits.

In this question:

Deposits of $765.13, so $P = 765.13$

Each month, for 3 years. An year has twelve months, so $n = 3*12 = 36$

2% Interest a year. An year has 12 months, so $r = \frac{0.02}{12} = 0.00167$

Find the final amount of the account.

$FV = \frac{765.13*((1 + 0.00167)^{36} - 1)}{0.00167} = 28,363.46$

The final amount of the account will be $28,363.46, which is option B.

8 0

2 years ago