aperretta
aperretta
24-07-2015
Mathematics
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18 is 75 percent of what number
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naǫ
naǫ
24-07-2015
18 is 75% of x.
[tex]75\%= \frac{75}{100}=\frac{3 \times 25}{4 \times 25}=\frac{3}{4} \\ \\ \frac{3}{4}x=18 \\ x=18 \times \frac{4}{3} \\ x=6 \times 4\\ x=24 [/tex]
18 is 75% of 24.
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