two numbers are in the ratio 4:5 the difference of their squares is 81 find numbers
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no are 12 and 15 hope it will help you
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x/y = 4/5
y^2 - x^2 = 81
x = 4y/5
y^2 - (4y/5)^2 = 81
y^2 - 16y^2/25 = 81
9y^2/25 = 81
y = sqrt (81*25/9)
y = 15
x = 4(15)/5 = 12
hope this method helps u
y^2 - x^2 = 81
x = 4y/5
y^2 - (4y/5)^2 = 81
y^2 - 16y^2/25 = 81
9y^2/25 = 81
y = sqrt (81*25/9)
y = 15
x = 4(15)/5 = 12
hope this method helps u
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