Edith takes her grandparents out to dinner. In addition to paying for their food, she will pay 10% sales tax and a 15% tip.
If Edith paid $55.75 in total for the food, tax, and tip, which equation could be used
solve for the cost of the food?

Cost of the food = $44.60

Step-by-step explanation:

Total cost of food, tax and tip = $55.75

Let

Cost of the food = x

Sales tax of 10% = 0.1x

Tip of 15% = 0.15x

Total cost = food + tax + tip

55.75 = x + 0.1x + 0.15x

55.75 = 1.25x

x =55.75/1.25

x = $44.60

Cost of the food = $44.60