ja9133318 ja9133318

15-10-2021
Mathematics

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find the product of two numbers whose sum is 11 and difference is 3

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crissz67 crissz67

15-10-2021

Answer:

let the first number be a and the second b

a + b =11

a -b =3

a = 11 - b

11 -b -b = 3

11 -2b =3

-2b =3 -11

-2b = -8

divide both sides by -2

b = 4

a +4 =11

a =11 -4

a =7

the product of the two numbers is 7×4=28

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