Question

A type of bolt weights about 5/16}ounces. If a collection of these bolts weighs 30 pounds, how many bolts are in the collection? Explain. (Hint: 1 lb = 16 oz)

Answer 1

1,536 bolts in the collection

Explanation:

If we need 30 pounds and there are 16 ounces in a pound then we can multiply 30 by 16 to find how many ounces are in 30 pounds.

30×16 = 480 ounces in 30 pounds.

If 1 bolt is 5/16 ounces and we need 180 ounces we can divide 180 by 5/16 to find how many bolts are in the collection. The situation can aso be expressed with an expression. (x=number of bolts)

5/16x=480

Divide 5/16 from both sides.

`(480)/(1)` ÷
`(5)/(16)` =
`(480)/(1)` ×
`(16)/(5)` =
`(7680)/(5)` =
`(1536)/(1)`=

1536 bolts in the collection