Answer:
n = 18
Step-by-step explanation:
2n - 5 = 31
Add 5 to each side
2n - 5+5 = 31+5
2n = 36
Divide each side by 2
2n/2 = 36/2
n = 18
Uhhh i think the answers A
Answer:
48/37
Step-by-step explanation:
Use the formula (y1 - y2)/(x1 - x2).
Plug in your x and y values to get (92 + 4)/(81 - 7).
Simplify down to get 96/74 and simplify again to get 48/37.
The ratio of m to km is
10/16
5:8
So for every 5 miles there are 8 km
45/5 = 9
9 * 8 = 72
Let's Check the answer:
45/72
5:8
So, its correct. The answer is 72 km.