Answer
7.5 liters
Step-by-step explanation:
We need to make an equation.
40%, x liters
60%, 30 liters
=56%
0.40(x) + 0.60 (30) = 0.56 (x + 30)
0.40x + 18 = 0.56x + 16.8
18 - 16.8 = 0.56x - 0.40x
1.2 = 0.16x
7.5 = x
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Answer:
7.5 liters of a 40% sugar solution
Let
x ----> liters of a 40% sugar solution
Remember that
we know that
The amount of liters of a 40% sugar solution (x) multiplied by 0.40 plus the amount of liters of a 60% sugar solution (30 L) multiplied by 0.60 must be equal to the total amount of liters mixed (x+30) multiplied by 0.56
solve for x
$0.32, so a quarter a nickel and 2 pennies
1.5 inches of steel
450/300
=1.5 in.
126.20 meters.
a.
Volume of square = length³
64 = length ³
Taking cube root in both sides
We'll get
Length = 4
Now perimeter of square = 4×L
= 4×4
= 16