Question

lesson 21 | session 3
khalid plans to save the same amount of money each month for 6 months to buy a remote control helicopter. the helicopter costs $112.75 plus $8.75 for delivery. khalid has a coupon for $18 off the price of the helicopter.
a. use the equation ( 6m = 112.75 - 18 + 8.75 ) to find out how much money, ( m ), khalid should save each month. show your work.

Explanation:

Step1: Simplify the right - hand side

First, we need to calculate the value of \(112.75 - 18+8.75\).
\(112.75-18 = 94.75\), then \(94.75 + 8.75=103.5\). So the equation becomes \(6m=103.5\).

Step2: Solve for m

To find the value of \(m\), we divide both sides of the equation \(6m = 103.5\) by 6.
\(m=\frac{103.5}{6}\)
\(103.5\div6 = 17.25\)

Answer:

Khalid should save \(\$17.25\) each month.