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Heather is a cashier. She can ring up 12 customers in 9 minutes. At this rate, how many minutes does it take her to ring up 4 customers?

Heather is a cashier. She can ring up 12 customers in 9 minutes. At this rate, how many minutes does it take her to ring up 4 customers?
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5 votes
Heather is a cashier. She can ring up 12 customers in 9 minutes. At this rate, how many minutes does it take her to ring up 4 customers?

User Tolik Odukha
by
8.5k points

2 Answers

1 vote
3 MINUTES.

(12)/(9) = (4)/(x)
If you solve this proportion, you get x = 3 minutes.
User Uffe Kousgaard
by
7.8k points
5 votes
I think the answer would be 3 minutes.
User Guido Caffa
by
8.0k points
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