Question

An automobile factory is assembling cars and they need to have all of the parts in stock at the assembly line. Each car needs four tires and a spare tire for the trunk. If they produce c cars per day, what formula shows how to calculate the number of tires, t, needed?

1) c = 4t
2) t = c/4
3) t = 4c
4) t = 5c

Answer 1

The correct formula to determine the total number of tires needed for producing c cars, where each car needs four tires and one spare tire, is t = 5c.

Step-by-step explanation:

To calculate the number of tires needed for the production of c cars per day, where each car requires four tires and one spare tire for a total of five tires per car, we can establish the following relationship: For one car, 5 tires are needed. Therefore, for c cars, we need 5 times c tires. This can be represented by the formula t = 5c, where t stands for the total number of tires needed and c represents the number of cars produced.

So, the correct formula to calculate the number of tires needed is t = 5c.