Lexi has $100 in a savings account. The interest rate is 10% per year and is not compounded. How much interest will she earn in 3 years? Use the formula i=prt, where i is the interest earned, p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.$_____
Q. Lexi has $100 in a savings account. The interest rate is 10% per year and is not compounded. How much interest will she earn in 3 years? Use the formula i=prt, where i is the interest earned, p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.$_____
Identify Principal Amount: question_prompt: How much interest will Lexi earn in 3 years on her $100 savings account with a 10% annual interest rate?
Determine Annual Interest Rate: Lexi's principal amount p is $100.
Specify Time Period: The annual interest rate r is 10%, which as a decimal is 0.10.
Apply Interest Formula: The time t is 3 years.
Calculate Interest: Use the formula i=prt to calculate the interest. So, i=($100)×0.10×3.
Calculate Interest: Use the formula i=prt to calculate the interest. So, i=$(100)×0.10×3. Calculate the interest: i=$(100)×0.10×3=$(30).