Question

a local grocery stand sold $12,456.98 on a friday. there were 289 customers. circle the expression that would provide the best estimate for the average amount spent by a customer. $13,000 ÷ 300 $12,000 ÷ 300 $10,000 ÷ 300 $12,000 ÷ 200 mr. jackson took his new car on a family vacation. he drove the car 1,454.625 miles and used 4.5 tanks of gas. how many miles does he get on a single tank of gas?

Explanation:

Step1: Estimate average spend per - customer

To estimate the average amount spent by a customer, we use the formula $\text{Average}=\frac{\text{Total amount}}{\text{Number of customers}}$. The total amount is $\$12,456.98\approx\$12,000$ (rounding to the nearest thousand) and the number of customers is $289\approx300$ (rounding to the nearest hundred). So the best - estimate expression is $\$12,000\div300$.

Step2: Calculate miles per tank

To find the number of miles per tank of gas, we use the formula $\text{Miles per tank}=\frac{\text{Total miles}}{\text{Number of tanks}}$. Given that the total miles driven is $1454.625$ and the number of tanks is $4.5$. So, $\text{Miles per tank}=\frac{1454.625}{4.5}=323.25$ miles per tank.

Answer:

1. The best - estimate expression for the average amount spent by a customer is $\$12,000\div300$.
2. He gets $323.25$ miles on a single tank of gas.