Question

A string of decorative lights has 32 bulbs for every 2 feet of wire.

What is the unit rate of bulbs per yard?


HELP !!!!!

Answer 1

First convert two feet into yards, knowing that:

1 foot = 0.333... yards

So,

2 feet in yards would mean double of 0.333... because one single foot is 0.333... yards.

2(0.333...)

= 0.666..., which we can round to 0.67.

So our new ratio will be 32 bulbs per 0.67 yards.

Now we convert this ratio into a unit rate,

Order your units;

Bulbs 32 47.76

______ ______ = ______, which rounds to about 48.

Yards 0.67 1

So the unit rate is 48 bulbs per yard.