Answer:
- post: 16 yards
- slant: 10 yards
Explanation:
You want to find the lengths of the post and slant routes run by Nick and Zack. Nick's 498 yards were 18 post and 21 slant routes. Zack's 450 yards were 15 post and 21 slant routes.
Setup
Using the given information, we can write a system of equations for the route lengths. Here are Nick's and Zack's totals, respectively.
18p +21s = 498
15p +21s = 450
Solution
Subtracting the second equation from the first, we have ...
(18p +21s) -(15p +21s) = (498) -(450)
3p = 48
p = 16
Using this value in the second equation, we have ...
15(16) +21s = 450
21s = 210 . . . . . . . subtract 240
s = 10 . . . . . . . . . divide by 21
The post routes were 16 yards; the slant routes were 10 yards.