Answer:
The ordered pair ( 8,12) can be written as (40,60) for values of r (=x) and
b (=y) for 5 weeks.
Explanation:
Every week Jim runs 8 miles and bikes 12 miles.
Let the week be represented by w , running miles by r and biking miles by b
therefore
1w= 8r + 12 b
Multiplying both sides by 5
5(1w= 8r + 12 b)
5(1w) = 5(8r + 12 b )
5w= 40r + 60b
Jim runs 40 miles and bikes 60 miles in 5 weeks
The ordered pair ( 8,12) can be written as (40,60) for values of r (=x) and
b (=y) for 5 weeks.
The answer is written in the form (x, y) where x is written before y in the ordered pair. We treat running miles as x and biking miles as y.