kennak13
Answered

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There were
70
runners to start a race. In the first half of the race,
1/5
of them dropped out. In the second half of the race,
4/7
of the remaining runners dropped out. How many runners finished the race?

Sagot :

ThePurplePig
Hey there! So,to do this, I would recommend making the fractions into decimals. 1/5 is equal to 0.2 so you multiply that times 70 runners . This equals 14 runners who dropped out. Subtract those who dropped out from the total and now you have 56 runners left. 4/7 as a decimal is about 0.575. Times that by 56 and you get another 32 who dropped out. You're now down to only 24 runners who finished the race.
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