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2 years ago

8

An oil tanker can be emptied by the main pump in 4 hours. An auxiliary pump can empty the tanker in 7 hours. If the main pump is

started at 5 PM, when should the auxiliary pump be started so that the tanker is emptied by 8 PM?

1 answer:

Taya2010 [7]2 years ago

8 0

Answer: 1:00

Step-by-step explanation: if you start at 12:00 then you finish at 7:00 if you start at 1:00 then both finish by 8:00

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25% of x is 30<br><br>x=? <br>please help!!!

Nesterboy [21]

25% of 30 can be found by converting 25% to a decimal and multiplying it by 30.

25% = 0.25

30x0.25=7.5

So x is 7.5.

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2 years ago

Simplify ( √ 5)(^3 √ 5) the answer will be a wholenumber and a fraction

arlik [135]

Answer:

$\sqrt{5}\cdot\sqrt[3]{5} =\sqrt[6]{5^3} \cdot\sqrt[6]{5^2} =\sqrt[6]{5^5} =5^{(5/6)}$

Step-by-step explanation:

The rules of exponents apply, even when they are fractional exponents:

$a^b\cdot a^c=a^{b+c}\\\\\sqrt[b]{x^a}=x^{(a/b)}$

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3 years ago

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2 years ago

What is the standard form of -9+8x=-10y

Nitella [24]

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2 years ago

Read 2 more answers

What is the length of side a? Round to the nearest tenth of an inch. <br><br> Please and thank youuu

lord [1]

Answer:

using Pythagoras rule, 16^2 -7^2 =a^2

so 256-49 = 297.

√207 =14.38 to the nearest tenth of an inch is 14inch.which is your answer

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2 years ago