3 years ago

A sample of iron ore was found to contain 44% iron by weight. How many pounds of iron are in 450LBS of this ore?

1 answer:

6 0

So to set this problem up lets understand it.
each percent is out of a whole (100%)
so the whole in this problem is 450 pounds
and to make 44% a usable number we move the percent sign two places over.
.44
to find out how many times .44 goes into 450 pounds we will multiply
(.44×450)=198 pounds
we can check our answer by dividing 198÷450
and getting .44 as our answer

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