He will mix some 20% solution and some 70% solution to make 60% solution.
Let x = number of liters of 20% solution.
Let y = number of liters of 70% solution.
He wants to make 50 liters of 60% solution, so
x + y = 50 First Equation
The amount of acid in x amount of 20% solution is 20% of x, or 0.2x
The amount of acid in y amount of 70% solution is 70% of y, or 0.7y
The amount of acid in 50 liters of 60% solution is 60% of 50 liters, or 0.6 * 50 = 30
Now we add the amounts of acid.
0.2x + 0.7y = 30 Second Equation
x + y = 50
0.2x + 0.7y = 30
-0.2x - 0.2y = -10
0.2x + 0.7y = 30
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0.5y = 20
y = 40
x + y = 50
x + 40 = 50
x = 10
Answer: He needs 10 liters of 20% solution and 40 liters of 70% solution.
A. 2/5
B.2/5
C. The slope of ABC and AGH are equal
<span>A whole number is multiplied to a fraction by multiplying the whole number to numerator of the fraction while retaining the denominator of the fraction 7/8 = (7 x 1)/8 = 7 x 1/8. The number missing in the 1st blank is 7 while the number missing in the second blank is 1.</span>
The unit price per ounce at Price club is $0.29 and the unit price per ounce at Shop Mart is $0.26
Step-by-step explanation:
Price of 12 ounce package at Price Club = $3.44
Unit rate per ounce = 
Unit rate per ounce = 
Price of 2 pound box at Shop Mart= $8.35
1 pound = 16 ounce
2 pound = 16*2 = 32 ounces
Unit rate per ounce =
Unit rate per ounce = 
The unit price per ounce at Price club is $0.29 and the unit price per ounce at Shop Mart is $0.26
Keywords: unit rate, division
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