5x + 2y = 7....multiply by -3
-2x + 6y = 9
----------------
-15x - 6y = -21 (result of multiplying by -3)
-2x + 6y = 9
---------------add
-17x = - 12
x = 12/17 or 0.7
5x + 2y = 7
5(12/17) + 2y = 7
60/17 + 2y = 7
2y = 7 - 60/17
2y = 119/17 - 60/17
2y = 59/17
y = 59/17 * 1/2
y = 59/34 or 1.7 when rounded <====
<span>3m^-2 3n^3
--------- = -----------
5n^-3 5m^2
hope it helps</span>
B. 50% of the moons surface
Answer:
2 4/20
Step-by-step explanation:
4 × 2 = 8
8 + 3 = 11
11/4 × 4/5
11 × 4 = 44
4×5= 20
44/20
Simplified is
2 4/20
