Answer:
32/9
Step-by-step explanation:
5x - 3y + 1 = 16 ⇒ 10x - 6y + 2 = 16
2x + 5y + 0 = -6 ⇒ <u>10x + 25y + 0 = -6</u>
31y + 2 = 10
<u> -2 -2</u>
<u>31y</u> = <u>8</u>
31 31
y = 8/31
5x - 3(8/31) + 1 = 16
5x - 24/31 + 1 = 16
5x + 7/31 = 16
<u> -7/31 -7/31</u>
<u>5x</u> = <u>10 24/31</u>
5 5
x = 2 24/155
(x, y) = (2 24/155, 8/31)
-279936 if you want to check it the best way is to do it on a calculator <span />
2.5 feet is half of 5 feet meaning we know that 2.5 feet is gonna be equal to half of two inches. So we need the answer that gives us one. 2/2.5 = 0.8 and 0.8/5 = 0.4. This means the answer is not A as it is too small. 5/2.5 = 2 and 2/2 = 1 meaning that it must be b. Therefore it cannot be c cause its already b.