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Vika [28.1K]
3 years ago
10

What quantity of a 50% acid solution must be mixed with a 20% solution to produce 600 mL of a 45% solution?

Mathematics
1 answer:
Naddika [18.5K]3 years ago
4 0

Answer:

400 mL

Step-by-step explanation:

0.50x + 0.20(600-x) = 0.40*600

50x + 20*600 - 20x = 40*600

30x = 20*600

x = 20*20

x = 400 mL

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Kevin is incorrect because x+x is adding two numbers, but x^2 is multiply.
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3 years ago
How many times can 250ml be taken from 2.5l
natka813 [3]
1 liter = 1,000 milliliters

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10 times.
3 0
3 years ago
Read 2 more answers
Which number line best shows how to solve −8 − (−2)? (5 points)
aliya0001 [1]

A number line from negative 10 to 10 is shown, with numbers labelled at intervals of 2. An arrow is shown from point 0 to negative 8. Another arrow points from negative 8 to negative 6. Therefore, option C is the correct answer.

<h3>What is a number line?</h3>

A number line is a straight line with numbers placed at equal intervals. Positive numbers are placed to the right of 0 and negative numbers are placed to the left of zero.

When a number (x) is added x unit is moved to the right while if a number (x) is subtracted x unit is moved to the left.

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Therefore, option C is the correct answer.

To learn more about the number line visit:

brainly.com/question/13189025.

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6 0
1 year ago
Beto has $12 to put gas in his car if gas cost 3.75 per gallon which ordered pair of lading number of gas to the total cost of g
Firdavs [7]

Given :

Total money Beto have , P = $12 .

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Solution :

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3 years ago
Efetue:
rjkz [21]
A. +60
B. +80
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