Kyle and his brother Joel leave a rest stop at the same time traveling in opposite directions. After traveling for 6 hours, they

Question

4 years ago

15

Kyle and his brother Joel leave a rest stop at the same time traveling in opposite directions. After traveling for 6 hours, they

are 780 miles apart. If Kyle drives 10 miles per hour faster than Joel, how fast was Joel traveling? Kyle and his brother Joel leave a rest stop at the same time traveling in opposite directions. After traveling for 6 hours, they are 780 miles apart. If Kyle drives 10 miles per hour faster than Joel, how fast was Joel traveling?
If anyone could explain, that would be great.

Mathematics

2 answers:

Tom [10] · Answer 1 · 2022-02-12T07:36:29+03:00

Tom [10]4 years ago

6 0

Answer:

60mph

Step-by-step explanation:

balandron [24] · Answer 2 · 2022-02-12T06:32:03+03:00

Kyle's speed is represented by variable k.
Joel's speed is represented by variable j.

Kyle is 10 mph faster.
k= j+10.

Driving in opposite directions after 6 hrs, they are 780 mi apart.
6j + 6k=780

Substitute for k
6j+ 6(j+10)=780
6j+6j+60=780
12j+60=780
12j=720
j=60

Final answer: Joel was travelling 60 mph