객관식
A giant water tank takes the shape of a cylinder. It has a radius of and a height of . How much water can this tank hold? Round to the nearest tenth of a .
Cylinder:
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3. Solving Word Problems
Formulas
Multiple Choice
Solve the formula for given , , and .
A
B
C
D
검증된 단계별 안내1
Start with the given formula: \(A = P \left(1 + r t\right)\).
To solve for \(P\), divide both sides of the equation by the quantity \(\left(1 + r t\right)\) to isolate \(P\):
\(P = \frac{A}{1 + r t}\).
Substitute the given values into the formula: \(A = 21\), \(r = -5\), and \(t = 1.5\).
Calculate the expression inside the denominator first: \(1 + r t = 1 + (-5)(1.5)\).
Finally, divide \(A\) by the result from step 4 to find \(P\):
\(P = \frac{21}{1 + (-5)(1.5)}\).
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