# Peter spent an average of $4.50 per day from Monday to Saturday. He spent$5.20 on Sunday. What was the average amount of money he spent per day from Monday to Sunday?

## Peter spent an average of $4.50 per day from Monday to Saturday. He spent$5.20 on Sunday. What was the average amount of money he spent per day from Monday to Sunday?

Jun 8, 2017

See a solution process below:

#### Explanation:

The average is calculated using the formula:

$A = \frac{s}{i}$

Where:

$A$ is the average - what we are being asked to solve for.

$s$ is the sum of the values of the items.

For this problem:
s = ($4.50 xx 6) +$5.20
s = $27.00 +$5.20
s = $32.20 $i$is the number of items being average - 7 for this problem. Monday to Saturday is 6 plus Sunday makes 7 Substituting and calculating $A$gives: A = ($32.20)/7

A = $4.60 Peter spent an average of$4.60 Monday to Sunday

Jun 8, 2017

$4.60 #### Explanation: So, he spends $4.50 from Monday to Saturday, the total amount he spends is

$4.50 xx "6 days" =$27

$27 +$5.20 "(that he spends on Sunday)" = $32.2  To find the average ($32.2)/(7("number of days in a week")) = $4.60 The average money he spends is $4.60.

I hope this helps