Data:
r (radius) = 3.5 in
h (height) = 8 in
Adopt: \(\pi \approx3.14\)
V (volume) = ?
Ink cost per cubic inch = $0.05/in³
Total cost: ?
Calculate the volume of the paint bucket (its formed being cylindrical), we have:
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What was the total cost of the paint?
price($)___measure(in³)
0.05 ---------- 1
y -------------- 307.72
It is made the rule of three: (directly proportional)
\(\frac{0.05}{y} = \frac{1}{307.72}\)
multiply cross
\(1*y = 0.05*307.72\)
\(y = 15.386\:\to\:\boxed{\boxed{y\approx\$15}}\end{array}}\qquad\quad\checkmark\)
Answer:
the total cost of the paint is $15
