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Cloud [144]
3 years ago
13

A school has a ratio of 5 boys to 9 total students. If the school has 360 students, how many will be girls?

Mathematics
1 answer:
Margaret [11]3 years ago
5 0
360/9=40
There are 40 "packs" of 9 students.
40*5=200 for the boys
40*4=160 for the girls
There are 200 boys and 160 girls.
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@mehek14
gayaneshka [121]
X=cost per hamburgurs
y=cost per hot dog

200x+150y=1450
200x+250y=1750

we can multiply first equation by -1 and add to 2nd

-200x-150y=-1450
<u>200x+250y=1750 +</u>
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sub back

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