At a certain college, there are 7 men for every 5 women. If there are 380 more men than women, what is the total enrollment?
2 answers:
7 men= 5 women
380 men= x women
=> 7x = 5 . 380
7x = 1900
x= 1900/7
x= 271,4
wich means 271 women
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Or
<span>Men - 420 = Women </span>
<span>Take (Men) / (Women) for each proportion... </span>
<span>7 / 5 = M / (M - 380) </span>
<span>Cross multiply: </span>
<span>5 M = 7 (M - 380) </span>
<span>5 M = 7 M - 1900 </span>
<span>-2 M = - 1900</span>
<span>M = 950</span>
<span>W = M - 380</span>
<span>W = 950 - 380 = 570
</span>M + W = total enrolled
950 + 570 = 1520
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