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3 years ago

Show the work and answer for 5550÷10 to the third power

1 answer:

8 0

Well I know the answer is 555 because when ever you are dividing by ten move the decimal place u move the decimal 1 place to the left or just take out the 0 at the end

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Sally can paint the wall in 54 minutes. If Sally and Ethan work together, they can paint the wall in 36 minutes. How much time d

MAXImum [283]

Answer:

$108\ minutes$

Step-by-step explanation:

1) we know that

Sally can paint the wall in 54 minutes

The 100% of the wall ------> she can paint in 54 minutes

by proportion

calculate how much is the percent of the work in 36 minutes

$\frac{100\%}{54} =\frac{x\%}{36}\\ \\x=36*100/54\\ \\x=66.67\%$

That means

Sally in 36 minutes can paint the 66.67% of the wall

2) Sally and Ethan work together, they can paint the wall in 36 minutes

Ethan in 36 minutes can paint (100%-66.67%)=33.33%

by proportion

Calculate how much time does it take for Ethan to paint the wall by herself

$\frac{33.33\%}{36} =\frac{100\%}{x}\\ \\x=36*100/33.33\\ \\x=108\ minutes$

6 0

3 years ago

Use the formula v = u + at to find the velocity, when

SVETLANKA909090 [29]

Answer:

$v = u + at \\ v = 3 + (1.5 \times 7) \\ v = 3 +10.5 \\ \boxed{v = 13.5 \: m {s}^{ - 1}}$

<h3>13.5 m/s is the right answer.</h3>

8 0

3 years ago

I need help man

solong [7]

Answer:

65x + y = 60

Step-by-step explanation:

hope it will help you

4 0

3 years ago

-6•-2+3+3-4 evaluate the expression

12345 [234]

Answer:

$- 6 - 2 + 3 + 3 - 4 \\ = > - 6 - 2 + 6 - 4 \\ = > - 6 - 8 - 4 \\ = > - 14 - 4 \\ = - 18$

7 0

3 years ago

A block of glass has a mass of 22.5g and a volume of 9cm cubed.

melisa1 [442]

Answer:

density, mass of a unit volume of a material substance. The formula for density is d = M/V, where d is density, M is mass, and V is volume. Density is commonly expressed in units of grams per cubic centimetre.

Step-by-step explanation:

3 0

2 years ago