Asked by Jessica
The product of two consective positive even intergers is 440. Would they be 20 and 22?
Answers
Answered by
Reiny
let the first integer be x, then the next even integer is x+2
translating your English into Math...
x(x+2)=440
x^2 + 2x - 440 = 0
(x-20)(x+22)=0
so x=20 or x=-22
case 1, the two numbers are 20 and 22 (you had that) or
case 2, the two integers are -22 and -20
translating your English into Math...
x(x+2)=440
x^2 + 2x - 440 = 0
(x-20)(x+22)=0
so x=20 or x=-22
case 1, the two numbers are 20 and 22 (you had that) or
case 2, the two integers are -22 and -20
Answered by
Reiny
oops, disregard the negative answers, I did not read the "positive" integer part
Answered by
tchrwill
The product of two consective positive even intergers is 440. Would they be 20 and 22?
The two consecutive even integers would be the two on both sides of the square root of 440. The square root of 440 is 20.976 thereby making the two even integers 20 and 22.
The two consecutive even integers would be the two on both sides of the square root of 440. The square root of 440 is 20.976 thereby making the two even integers 20 and 22.
Answered by
tiquita
one positive interger is 5 less than 3 times another and their product is 78 what are the two intergers?
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