5 pairs of numbers
(1, 12)
(2, 12)
(3, 12)
(4, 12)
(3, 4)
Answer:
32
(this is just an approximation due to the left triangle)
-3 • (5x + 2y = 7)
-15x - 6y = -21
-2x + 6y = 9
__________
-17x = -12
x = 12/17
5(12/17) + 2y = 7
2y = 7 - 60/17
2y = 3.47
y = 1.735
X^3 * x^2 - 4 is your answer. Hope this helps!
You simply put 40 over a hundred and 55 over n (which is the number were trying to find) so you do cross multiplication. 55 times a hundred and after you get the answer. You divide it by 40 and should get 137.5.