Find how fast she runs 1 km:
18/2 = 9 minutes.
So we know have K = 9t
Subtract 18 from both sides:
K-18 = 9t -18
Rewrite the right side:
K-18 = 9(t-2)
1/3 * 1/4
1/12
Hope this helps
Answer:
200
Step-by-step explanation:
12% is equal to 12/100
I would set up something like
12/100= 24/x
to get from 12 to 24, you have to multiply by 2.
do the same for 100 so 100 x 2= 200
-11 = a + 7 Given
-7 -7 Subtract 7 on each side to cancel out +7 and isolate variable
-18 = a Answer
Prove.
-11 = -18 + 7 Plug in variable value
-11 = -11
True.