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# PLZ HELP I DUMB

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Of the balloons recently sold by a party store, 2 were blue and 10 were other colors. Considering this data, how many of the next 18 balloons sold would you expect in be blue

Jul 7, 2023

#1
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Jul 7, 2023
#2
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Of the balloons recently sold by a party store, 2 were blue and 10 were other colors. Considering this data, how many of the next 18 balloons sold would you expect in be blue

Assuming a consistent proportion, x is to 18 as 2 is to 10

x          2

–––  =  –––

18        10

cross multiply                                  10x  =  36

x  =  3.6

You can't have point six of a balloon,

so round this to a whole number, one

way or the other.  Convention would

be to round up.

.

Jul 7, 2023
#3
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Guest Jul 10, 2023
#4
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That's right, because I clumsily misread the problem.

It would have been nice if you'd said how it was wrong.

I should have said x is to 18 as 2 is to 12

(should have included the blue ones in the known ratio)

x          2

–––  =  –––

18        12

cross multiply                                  12x  =  36

x  =  3

.

Bosco  Jul 12, 2023