Answer:
Step-by-step explanation:
is supplementary to
Let a = runner 2, a + 500 = runner 1.
a + (a + 500) = 5000
2a + 500 = 5000
2a = 4500
a = 2250
Runner 1 ran 2,750 meters. Runner 2 ran 2,250 meters.
37 and 48 became that's what my teacher said
Answer:
1 : 4
Step-by-step explanation:
Let x represent the amount of 30% solution for 1 unit of 5% solution. Then the amount of acid in the mix is ...
0.30x + 0.05·1 = 0.10·(x +1)
0.30x + 0.05 = 0.10x + 0.10 . . . . eliminate parentheses
0.20x = 0.05 . . . . . . . . . . . . . . . . subtract 0.05+0.10x
x = 0.05/0.20 = 1/4
That is, the ratio x : 1 is 1 : 4.
The answer to the question is 9,700.
