Question

you decide to order magnets instead of bumper stickers. each magnet costs $3, and the shipping fee for your order is $5. the total cost of your order, including the shipping fee, is $455. create and solve an equation to determine how many magnets you should order. you can use y to represent the number of magnets. $3y + 5 = 455$ $y = 150$ $5y + 3 = 455$ $y = 90$ $3y + 5 = 450$ $y = 148$ $8y = 455$

Explanation:

Step1: Define cost equation

Each magnet costs $3, so total magnet cost is $3y$. Add $5 shipping fee, set equal to total cost $455$:
$3y + 5 = 455$

Step2: Isolate the variable term

Subtract 5 from both sides:
$3y = 455 - 5$
$3y = 450$

Step3: Solve for y

Divide both sides by 3:
$y = \frac{450}{3}$
$y = 150$

Answer:

3y + 5 = 455
y = 150