3 years ago

Can someone help with 21 and 22

1 answer:

5 0

21.
company A
$132 / 1200 = 0.11 cents per minute

company B
$260 / 2000 = 0.13 cents per minute

company A is 2 cents cheaper

answer
3. Company A by 2 cents per minute

---------
22.

ratio 7:10
so 7 + 10 = 17

357 / 17 = 21

boys to girls 7:10
so
boys = 7 x 21 = 147
girls = 10 x 21 = 210

asking for # of girls

so answer is
1. 210

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