Math
posted by Kristy
A truck is carrying orange juice cherry juice and cranberry juice bottles in a ratio of 1:2:5. If there are 30 cherry juice bottles, then how many cranberry juice bottles are there?

bobpursley
1:2:5
?:30:?
15:30:75 check that. 
Susan
Sense the ratio is 1:2:5 and the 2nd ratio is 30 you devide 30 then multiply the new number by 5.

John
You divide 2 into 30 and find that it is a factor of 15.
Multiply 1 times 15
and 5 times 15
so 15:30:75
To check your work divide each part by 15 and you should be back to the 1:2:5
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