His work should have looked like this.
2x + y = 5 x − 2y = 10 y = 5 − 2x x − 2(5 − 2x) = 10 x − 10 + 4x = 10 5x − 10 = 10 When he added in both sides, he subtracted 10 from 10, 5x = 20 instead of adding 10 from 10 to make 20. x = 4 2(4) + y = 58 + y = 5
y = -3
Answer:
0.333333+
Step-by-step explanation:
C
converting 8 ft to inches
8 * 12 = 96inches
if 96 inches = 443.2 m
1 inch = (443.2 * 1)/96 = 4.6m
which is closest to option c
