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pochemuha
3 years ago
7

A pool can be filled bye one pipe in 10 hours and by a second pipe in 15 hours. How long will it take using both pipes to fill t

he pool?
Mathematics
1 answer:
forsale [732]3 years ago
4 0

Answer:

it will take 25 hours

Step-by-step explanation: add 10 and 15

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Write as a single logarithm.<br> ln(5) + 3/5 ln(32) − ln(4)
In-s [12.5K]

Answer:

ln(10)

Step-by-step explanation:

Let's rewrite the expression as a single logarithm using the next propierties:

log(x*y)=log(x)+log(y)\\y*log(x)=log(x^{y} )\\log(\frac{x}{y} )=log(x)-log(y)

So:

ln(5)+ln(32^{\frac{3}{5} } )-ln(4)

Where:

32^{\frac{3}{5} }=\sqrt[5]{32^{3} } =\sqrt[5]{32768} =8

Therefore:

ln(5)+ln(8)-ln(4)=ln(5*8)-ln(4)=ln(\frac{8*5}{4})=ln(\frac{40}{4})=ln(10)

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3 years ago
An iphone costs $1000 and is on sale for 20% off
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Answer:

200

Step-by-step explanation:

20 X 1000= 20000 divided by 100

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3 years ago
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How is 2 hours and 30 minutes more than 10% of the day
matrenka [14]
In order to find what 10% of a day is:

A day is 24 hours long.

Divide 24 by 100, then multiply the answer by 10.

24/100=0.24
0.24*10=2.4

So, 10% of the day is 2.4 hours.

2 hours and 30 minutes can be written as a decimal as 2.5.

So, 2 hours and 30 minutes is slightly more than 10% of the day.
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3 years ago
PLEASEEEE HELPPPPP !!!!!!! I will mark Brianliest !!!!!!!!!!!!!!!!
gregori [183]

Answer: what are you looking for

Step-by-step explanation:

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3 years ago
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A factory uses 1/8 of a barrel of raisins in each batch of granola bars. Yesterday, the factory used 3/4 of a barrel of raisins.
dimaraw [331]

Answer: 6

Step-by-step explanation:

From the question, we are informed that a factory uses 1/8 of a barrel of raisins in each batch of granola bars and that the factory used 3/4 of a barrel of raisins yesterday.

To calculate the number of batches of granola bars that the factory made yesterday, we divide 3/4 by 1/8. This will be:

= 3/4 ÷ 1/8

= 3/4 × 8/1

= 24/4

= 6

The company made 6 batches of granola bars

7 0
3 years ago
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