# Two numbers are in the relation 7: 3. find both numbers if it is known that: a) the sum of these numbers is equal to 90 b) the difference of these numbers is equal to 36 c) the first the second is equal to 36 d) one number more than another on 64 is equal to 21 e)

Nonn

169

A) 7x+3x = 90 x=9 answer: 63 and 27 b) 7x-3x = 36 x=9 answer: 63 and 27 c) 7x=36 x=5 1/7 answer: 36 and 15 3/7 d) 3x = 21 x=7 answer: 49 and 21 e) 7x-3x = 64 x=16 answer: 112 and 48

28

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