2d = 5c
2/5 = c/d ...true
5/2 = d/c...true
2/c = 5/d...true
2/d = 5/c....not true
Answer:
Solution
20x+8
Step-by-step explanation:
hope this helps you
5n + 13.....n = -5
5(-5) + 13 =
-25 + 13 =
-12
4n + 8.....n = -5 <===
4(-5) + 8 =
-20 + 8 =
-12
We will use the equation:
r t = 3/4 r ( t+12 ) /:r
t = 3/4 t + 9
t - 3/4 t = 9
1/4 t = 9
t = 9 * 4 = 36 minutes ( takes a trip to the market )
36 + 12 = 48 minutes
The ride home takes 48 minutes.
