A.) 531.82
There's no other answer choices so-
3/(x + 4) = (x + 2)/5
Multiply both sides by 5 :
5 × 3/(x + 4) = 5 × (x + 2)/5
15/(x + 4) = x + 2
Multiply both sides by x + 4 :
(x + 4) × 15/(x + 4) = (x + 4) × (x + 2)
Provided that x + 4 ≠ 0, we can cancel the factors of x + 4 on the left side:
15 = (x + 4) (x + 2)
Expand the product on the right side:
15 = x² + 6x + 8
Move everything to one side:
0 = x² + 6x - 7
We can factorize easily in this case
0 = (x + 7) (x - 1)
Then
x + 7 = 0 or x - 1 = 0
⇒ x = -7 or x = 1
Answer:
36
Step-by-step explanation:
Girls = 2
Boys = 3
2 + 3 = 5
60 / 5 = 12
Girls = 2 x 12 = 24
Boys = 3 x 12 = 36
24 + 36 = 60
2/5 (rise/run) is the distance. You move up by 2 and 5 to the right
I think it would just be (if 7 is x and 14 is y like a table where every 2 are a pair) 2x so the next number in the sequence would be 28