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3 years ago

7

There are 24 hours in a day and scientists tell us that we should sleep for 3/8 of the day how much time should we spend sleepin

g?

1 answer:

Katyanochek1 [597]3 years ago

3 0

Answer:

9

Step-by-step explanation:

3/8 × 24

= 3 × 3

= 9

9 Hours

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10/r - 7 - 6b if r = 5 and b = -6

laiz [17]

Steps to solve:

10/r - 7 - 6b when r = 5 and b = -6

~Substitute

10/5 - 7 - 6(6)

~Simplify

5 - 7 + 36

~Subtract

-2 + 36

~Add

34

Best of Luck!

5 0

3 years ago

The reciprocal of 6 4/5 is

kondor19780726 [428]

It should be 34/5*. If you create an improper fraction out of the original one, then creating the reciprocal will be easier.

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3 years ago

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Kathryn bought five CDs. A week later half of all her CDs were lost during a move. There are now only 16 CDs left. With how many

yan [13]

She started off with 11

5 0

3 years ago

Help me please will be appreciated thx

alexandr1967 [171]

Answer:

-6 +8d -2c

Step-by-step explanation:

$\frac{-2}{5} (15 -20d +5c) = \frac{-2}{5} \times 15 - \frac{-2}{5}\times20d +\frac{-2}{5}\times5c = -6 + 8d -2c$

3 0

2 years ago

Can anybody help me solve this? You must solve for X first.

gogolik [260]

Answer:

45 degrees

Step-by-step explanation:

angle QRS is same as (2x + 3) because it is an isosceles triangle

so, 90 + (2x+3) + (2x+3) =180 degrees

2x+3 +2x+3=180-90

2x+2x +3+3=90

4x+6=90

4x=90-6

4x=84

x=84/4

x=21

substitute x=21 in (2x+3)

2*21+3=45

6 0

3 years ago