3 years ago

If a student sleeps 7 hours what percent of a 24 hour day is that

Mathematics

1 answer:

kumpel [21]3 years ago

5 0

SOLUTION:

= ( 7 / 24 ) × 100%

= 29.16% ( with reciprocal of 6 )

Hope this helps! :)
Have a lovely day! <3

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Whats the answer to 30 less than 10

Deffense [45]

We are looking for a new number which is 30 less than 10. We will get the new number by subtracting 30 from 10. We write it down as: 10-30=-20

And finally the solution for: What number is 30 less than 10? is -20

Hope this helps!!

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3 years ago

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How do you solve 8x-7= 3x 9?

gtnhenbr [62]

8x - 7 = 3x + 9
8x - 3x = 9 + 7
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2 years ago

If y varies directly as x and y = 21 when x = 5, find x when y = 42.

Lorico [155]

Answer: 10

<u>Step-by-step explanation:</u>

varies directly means: $\frac{y}{x} = k$

Step 1: solve for k ⇒ $\frac{21}{5} = k$

Step 2: plug in the given value and k to solve for the missing value: $\frac{42}{x} = \frac{21}{5}$

42(5) = 21(x)

$\frac{42(5)}{21} = \frac{21(x)}{21}$

2(5) = x

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3 years ago

I NEED THIS ASAP! ILL GIVE YOU BRAINLIST!

Artist 52 [7]

I believe $30 but i am not completely sure :)

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3 years ago

Max, a carpet installer, needs to calculate the amount of carpet needed to cover a floor that’s 3 1⁄2 yards wide and 4 3⁄4 yards

AlekseyPX

Answer:

13 1/2

Step-by-step explanation:

Just multiply 3.5 and 4.75

AKA

3 1/2 and 4 3/4

Change 1/2 into 2/4 so the denominators are the same

Multiply the numerators 2 and 3, you now have 6/4

3 × 4 = 12

6/4 is improper so, you need to simplify

now you have 1 1/2

Now 12 + 1 1/2 = 13 1/12

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3 years ago