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2 years ago

What percent of 65 of 13%?

Mathematics

1 answer:

melisa1 [442]2 years ago

8 0

Answer:

Step-by-step explanation:

The formula to your percentage problem is percent over 100 equals is over of. Meaning that is, is considered as a numerator and of is considered as a denominator. So, you place 13 as the numerator and 65 as the denominator.

13 1 You multiply 13 by 100 and then you divide the answer by 65.

it equals 20.

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The circumference of a circle is 9 pi m. What is the area, in square meters? Express

Ksivusya [100]

Answer:

20.25 m²

Step-by-step explanation:

the area (A) and circumference (C) of a circle are calculated using the formulae

C = 2πr and A = πr² ( where r is the radius )

calculate the radius using the formula for circumference

2πr = 9π ( divide both sides by 2π )

r = = = 4.5, hence

A = π × 4.5² = 20.25π m²

8 0

2 years ago

Read 2 more answers

In each of the following ,make y the subject and hence find the value of y when a=2, b=3 ,and c=4.

zvonat [6]

Part i

$\dfrac{2a-7}{6y} = \dfrac{3b-5}{2c}$

$y = \dfrac{ 2c(2a-7)}{6(3b-5)} = \dfrac{c(2a-7)}{9b-15}$

Substituting,

$y = \dfrac{4(2(2)-7)}{9(3)-15} = \dfrac{ -12}{12} = -1$

Answer: -1

Part ii

I'm not sure that one's typed in correctly but I'll solve it as written.

$3-34y + 2a = \dfrac{3b-5}{2c + 1}$

$34y = 3+2a-\dfrac{3b-5}{2c + 1}$

$y = \frac 1 {34}\left(3+2a-\dfrac{3b-5}{2c + 1} \right)$

We're not asked to simplify it so I wont. Substituting,

$y = \frac 1 {34}\left(3+2(2)-\dfrac{3(3)-5}{2(4) + 1} \right) = \frac 1 {34}(7-4/9) = \dfrac{59}{306}$

Answer: 59/306

3 0

3 years ago

10 ice cubes fit into 1/2 a tray. How many ice cubes fit per tray? 5<br> (1 Point)

NeX [460]

Answer:

20 ice cubes. Hope this helps!! ;)

Step-by-step explanation:

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2 years ago

Suppose that you borrow $30,000 for four vears at 8% for

Thepotemich [5.8K]

Answer:

$41269.983

rounded:

$41,269.98

Step-by-step explanation:

well you begin with the equation a=p(1+r/n) $^{nt}$

so 30,000(1+0.08/12)to the power of 4 times 12

when you plug all of that in a calculator your receive $41269.983

4 0

1 year ago

Read 2 more answers

Write10:15 pm in 24 hour time

Stels [109]

Your answer is 22:15

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2 years ago