elementary alegbra

Question

Miguel has a job transporting soft drinks by truck. His truck is filled with cans that weigh 14 ounces and bottles that weigh 70 ounce. The combination total is 840 cans and bottles in his truck. Let x be the number of 14-ounce cans in his truck. write an expression for the combined total weight (in ounces) of the cans and bottles in his truck.

Answer 1

X is the number of 14-ounce cans in the truck.

Since the total number of cans and bottles in the truck is 840, the number of 70-ounce bottles in the truck is (840-x).

The expression for the weight in ounces of the cans and bottles in his truck is:

14x + 70(840 - x)

14x + 58,800 -70x

58,800 - 56x