Multiple Choice
A patient was prescribed a medication dose. It was increased by after days, and the new dosage is . What was the original dosage?
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3. Solving Word Problems
Percent Problem Solving
Multiple Choice
A -year government bond paid simple interest per year. Over the years, the bond earned in interest. What was the principal of the bond?
A
B
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D
\$80000
Verified step by step guidance1
Identify the formula for simple interest: \(I = P \times r \times t\), where \(I\) is the interest earned, \(P\) is the principal, \(r\) is the annual interest rate (in decimal form), and \(t\) is the time in years.
Convert the given interest rate from a percentage to a decimal by dividing by 100: \(5.8\% = \frac{5.8}{100} = 0.058\).
Substitute the known values into the simple interest formula: \(4640 = P \times 0.058 \times 10\).
Simplify the right side of the equation by multiplying the interest rate and the time: \(4640 = P \times 0.58\).
Solve for the principal \(P\) by dividing both sides of the equation by 0.58: \(P = \frac{4640}{0.58}\).
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