Question

Homework kills guys, please help

Answer 1

Answer:

The correct answer is in bold below written in two different ways. I think that the two middle options of your problem were given by mistake. The correct answer is not in the options.

Step-by-step explanation:

cost of yogurt = cost of toppings + cost of yogurt with 1 topping

cost of yogurt with 1 topping = $3.65

cost of yogurt = cost of toppings + 3.65

cost of 1 additional topping = $0.45 * 1

cost of 2 additional toppings = $0.45 * 2

cost of x additional toppings = $0.45 * x = 0.45x

Since 1 topping is included in the $3.65 charge, if you pay for x additional toppings, you will have x + 1 total number of toppings. That means you must pay for only x - 1 additional toppings to have a total of x toppings.

One topping is already included in the $3.65 charge, so you pay for only x - 1 additional toppings.

cost of x - 1 additional toppings = 0.45(x - 1)

cost of yogurt = 0.45(x - 1) + 3.65

y = 0.45(x - 1) + 3.65

y = 0.45x - 0.45 + 3.65

y = 0.45x + 3.2