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2 years ago

12

You need a 60% alcohol solution. On hand, you have a 480 mL of a 75% alcohol mixture. How much pure water will you need to add t

o obtain the desired solution?

1 answer:

svetlana [45]2 years ago

5 0

Answer:

120 mL

Step-by-step explanation:

If the 480 mL has 75% concentration, then 360 mL are alcohol. To turn the 360 into only 60%, you need to increase the amount of water.

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fomenos

Answer: 0.1 or 1/10

Step-by-step explanation:

$\left(\frac{3}{4}-\frac{2}{3}\right)\cdot \:1\frac{1}{5}$

$1\frac{1}{5}=\frac{6}{5}$

$\left(\frac{3}{4}-\frac{2}{3}\right)\cdot \frac{6}{5}$

$\frac{3}{4}-\frac{2}{3}$ $=\frac{9}{12}-\frac{8}{12}$

$=\frac{1}{12}$

$\frac{6}{5}\cdot \frac{1}{12}$

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$\frac{1}{2}\cdot \frac{1}{5}$

$=\frac{1}{10}$

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2 years ago

A truck’s position relative to a car’s position is -60 feet. The car and the truck move in the same direction, but the car moves

ZanzabumX [31]

Answer:

I think its false

Step-by-step explanation:

the car went 8 second faster

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2 years ago

How much is a 10% tip on a $25 bill

s344n2d4d5 [400]

Answer:

$2.50.

Step-by-step explanation:

10 percent of 25 is 2.5.

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3 years ago

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What is 3x-8-8x=42 answer nowwwwwwwwwwwwwwwwwwwwwwwwwww

eimsori [14]

The answer is x = -10

Explanation:

3x-8-8x=42

3x-8x = 42-8

-5x = 50 ---> do

x = -10

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What is the value of the function f(x)=4(x-15) evaluated at x=10?

slamgirl [31]

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