Final answer:
Juan will receive $1,125 in interest at the end of 18 months from a $10,000 loan at a 7.5% simple interest rate.
Step-by-step explanation:
To calculate the amount of interest Juan will receive from loaning $10,000 at a simple interest rate of 7.5% for 18 months, we can use the formula for simple interest:
Interest = Principal × Rate × Time
In this case, the principal (P) is $10,000, the rate (R) is 7.5% or 0.075 as a decimal, and the time (T) is 18 months. Since the time should be in years for this formula and there are 12 months in a year, we convert the time to years by dividing 18 months by 12. Therefore, T = 1.5 years.
Now, we substitute the values into the formula:
Interest = $10,000 × 0.075 × 1.5
Interest = $1,125
Hence, Juan will receive $1,125 in interest at the end of 18 months.