.88622692545 so approximately.89
Answer: 10, 11, & 12
<u>Step-by-step explanation:</u>
Let x represent the age of the youngest child.
Their ages are consecutive so,
Youngest: x
Middle: x + 1
Oldest: x + 2
The age of the Youngest squared (x²) equals 8 times the Oldest [8(x + 2)] plus 4.
x² = 8(x + 2) + 4
x² = 8x + 16 + 4
x² = 8x + 20
x² - 8x - 20 = 0
(x - 10)(x + 2) = 0
x - 10 = 0 or x + 2 = 0
x = 10 or x = -2
Since age cannot be negative, x = -2 is not valid
So, the Youngest (x) is 10
the Middle (x + 1) is 11
and the Oldest (x + 2) is 12
Answer: 3(n-2) =3n-6
Step-by-step explanation: There all separate groupings
Answer:
980 hers your proof so 170 * 7 =180
Step-by-step explanation:
Let x = larger odd integer
then (x-2) is the smaller odd integer
Translate:
"sum of two consecutive odd integers is 80" means (x-2) + x = 80
2x -2 - 80
2x = 82
x = 41
