Answer:
x=14
Step-by-step explanation:
9x = 3x + 84
9x-3x=84
6x=84
x=84/6
x=14
128.25 × 4 = 513
162.82 × 4 = 651.28
37.46 × 24 = 899.04
221.65 × 6 = 1329.9
So add them all up.
3393.22
Answer:
x ≥ 6
Step-by-step explanation:
the equation for this is 2x (the sum of twice a number) + 4 (and 4) ≥ 16 (is at least 16
2x + 4 ≥ 16
subtract 4 from both sides (4 and 16)
you get 2x ≥ 12
divide both sides by 2 (2x and 12)
you get x ≥ 6
yw

is the second or third Pythagorean triple on the list, which gives us the answer directly.
But if we didn't know that, let x be the short leg:




Rejecting the negative root, x=5, other side 12, the Pythagorean triple we found.