toniawu18
13.03.2021 •
Mathematics
Barbie wants to buy a dress for $20 and some shirts for $12 each. She has $80. Write and solve an inequality to find the number of shirts she can buy.
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Ответ:
5 shirts for 12 is 60 dollars
20 dollar dress plus 60 is 80
Step-by-step explanation:
Ответ:
9514 1404 393
Step-by-step explanation:
The first pipe fills 1/4 of the tank in 1 hour. The second pipe fills 1/3 of the tank in 1 hour. So, in 1 hour, the amount of the tank that is filled is ...
This number is the fill rate in tanks per hour. We want the reciprocal of that, the fill time in hours per tank. The reciprocal of 7/12 is 12/7.
It will take 12/7 hours to fill the tank.
_____
Comment on the answer
It looks like you may be asked to fill two "green boxes" to provide the complete answer. The box shown as green in this question is the numerator of the fraction, so should be filled with 12. (We expect that the denominator entry will be made available as soon as you enter the numerator. Your experience with this web site will tell you if that is true.)