BreBreDoeCCx
20.07.2019 •
Mathematics
Liam is riding his bike at a rate of 7 miles per hour he wants to beat his own one day riding record to do so he has to run more than 32 miles he'sridden 4 miles which statement describes how many more hours liam must ride to beat his record. he must ride fewer than 4 more hours he must ride more than 4 more hours he must ride no less than 5 more hours he mus ride no more than 5 more hours
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Ответ:
distance-ridden + distance-to-ride ≥ record-distance
distance-ridden + (speed × time-to-ride) ≥ record-distance
4 +7h ≥ 32 . . . . . . . . an inequality representing the distance Liam wants
7h ≥ 28 . . . . . . . . . . subtract 4
h ≥ 4 . . . . . . . . . . . . . divide by 7
He must ride for more than 4 hours.
Ответ: