Answer:
give full question. where is diagram.
C. The first is a solution, but the second is not.
5x - y/3 = 13 ; (2,-9)
substitute the letters:
5(2) - (-9/3) = 13
10 - (-3) = 13 : note that deducting a number with a negative sign turns both sign as positive.
10 + 3 = 13 ;
13 = 13
5x - y/3 = 13 ; (3,-6)
5(3) - (-6/3) = 13
15 - (-2) = 13
15 + 2 = 13
17 = 13 not equal. not a solution
hope i could help
Answer:The numbers are 8 1/3, 9 1/3, and 10 1/3
Step-by-step explanation:
btw my name is not Google, but I'll post anyhow.
if all three friends only have 5lbs of flour only and therefore only 19 cups of flour, well, each batch takes up 2 cups of flour and they only have 19 cups, 19/2 gives us 9 with a remainder of 1.
so 9 whole batches.
X = 8.5 because 8.5 x 2 = 17 and 17 + 1 = 18
