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Kaylis [27]
3 years ago
13

Need help on this please answers these questions

Mathematics
2 answers:
Free_Kalibri [48]3 years ago
5 0
1) 25% of 176 = 44
2) 90% of 20 = 18
3) 24 is 80% of 30
Alika [10]3 years ago
4 0
1. 25% if 1/4, so we want to find 1/4 of 176. Best way to get the result is just divide 176 by 4, so 176:4=44 - its the answer.

2. To get the answer we can use proportion
100% -----------20
90% ---------- x
crossmultiply now
100x=90*20
100x=1800     /:100        divide both sides by 100
x=18 - its the answer

3. Similar problem
24 ---------- x
30 ---------- 100%
crossmultiply now
24*100%=30x 
2400%=30x     /:30 divide both sides by 30
2400%:30=x
80%=x - its the answer
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