Question
A certain car factory used to produce 12 cars in 15 hours. Due to a decrease in sales, the CEO has cut the factory hours down to 10. Which equation can the CEO use to find out how many cars, c, the factory is able to produce in a 10-hour day?(1 point)
Responses
15 over 12 is equal to 10 over c
c over 15 is equal to 12 tenths
c over 12 is equal to 15 tenths
12 over 15 is equal to 10 over c
12 over 15 is equal to 10 over c
explan
To find the equation that the CEO can use to determine how many cars, c, the factory is able to produce in a 10-hour day, we need to set up a proportion.
The factory used to produce 12 cars in 15 hours, so the ratio of cars to hours is 12:15. Now, the factory will produce an unknown number of cars, c, in 10 hours. So, the ratio of cars to hours is c:10.
Setting up the proportion:
12/15 = c/10
Solving this proportion gives the CEO the equation needed to find out how many cars the factory can produce in a 10-hour day.