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Barry has $90\$90 in a savings account that earns 10%10\% annually. The interest is not compounded. How much interest will he earn in 22 years? \newlineUse the formula i=prti = prt, where ii is the interest earned, pp is the principal (starting amount), rr is the interest rate expressed as a decimal, and tt is the time in years.\newline$\$_____

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Q. Barry has $90\$90 in a savings account that earns 10%10\% annually. The interest is not compounded. How much interest will he earn in 22 years? \newlineUse the formula i=prti = prt, where ii is the interest earned, pp is the principal (starting amount), rr is the interest rate expressed as a decimal, and tt is the time in years.\newline$\$_____
  1. Convert to decimal: First, let's convert the interest rate from a percentage to a decimal.\newline10%10\% as a decimal is 0.100.10.
  2. Use formula: Now, we'll use the formula i=prti = prt to calculate the interest.\newlineHere, p=$(90)p = \$(90), r=0.10r = 0.10, and t=2t = 2 years.
  3. Calculate interest: Plugging the values into the formula gives us:\newlinei=90×0.10×2i = 90 \times 0.10 \times 2
  4. Perform multiplication: Now, let's do the multiplication to find the interest.\newlinei = 90×0.2090 \times 0.20\newlinei = $18\$18

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