SOLUTION: the ratio of children to adult is 7:3, and there are 820 people. how many are children?
please explain...and thank you!!
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-> SOLUTION: the ratio of children to adult is 7:3, and there are 820 people. how many are children?
please explain...and thank you!!
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Question 411182: the ratio of children to adult is 7:3, and there are 820 people. how many are children?
please explain...and thank you!! Found 2 solutions by edjones, josmiceli:Answer by edjones(8007) (Show Source):
You can put this solution on YOUR website! I can say:
(children)/(adults) = 7/3
I can also say:
(children)/(children + adults) = 7/(7 +3)
and
(adults)/(children + adults) = 3/(7 + 3)
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I'm told that children + adults = 820
therefore
and
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and
There are 574 children
check answer:
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