Asked by Scotty
The ratio of the number of male lions to female lions in the animal reserves is 21:20. If there are 123 lions in the animal reserve, how many of the lions are female?
Thank you!
Thank you!
Answers
Answered by
Bosnian
m = number of male lions
f = number of female lions
m / f = 21 / 20 Multiply both sides by 20
20 m / f = 21 * 20 / 20
20 m / f = 21 Multiply both sides by f
20 m * f / f = 21 * f
20 m = 21 f Divide both sides by 20
20 m / 20 = 21 f / 20
m = 21 f / 20
m + f = 123
________________________________
Remark f = 20 f / 20
________________________________
21 f / 20 + 20 f / 20 = 123
41 f / 20 = 123 Multiply both sides by 20
41 f * 20 / 20 = 123 * 20
41 f = 2460 Divide both side by 41
41 f / 41 = 2460 / 41
f = 2460 / 41 = 60
f = number of female lions
m / f = 21 / 20 Multiply both sides by 20
20 m / f = 21 * 20 / 20
20 m / f = 21 Multiply both sides by f
20 m * f / f = 21 * f
20 m = 21 f Divide both sides by 20
20 m / 20 = 21 f / 20
m = 21 f / 20
m + f = 123
________________________________
Remark f = 20 f / 20
________________________________
21 f / 20 + 20 f / 20 = 123
41 f / 20 = 123 Multiply both sides by 20
41 f * 20 / 20 = 123 * 20
41 f = 2460 Divide both side by 41
41 f / 41 = 2460 / 41
f = 2460 / 41 = 60
Answered by
Anonymous
this is bull crap
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