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?

Joel is moving with 60 mph speed.

Step-by-step explanation:

If Kyle has a speed of u mph and his brother has the speed of v mph, then as they are moving in the opposite direction, their resultant speed will be (u + v) mph.

Now, after traveling for 6 hours, they are 780 miles apart.

So, ......... (1)

Now, if Kyle drives 10 miles per hour faster than Joel, then

u = v + 10

⇒ u - v = 10  ........ (2)

Now, solving equations (1) and (2) we get,

2u = 130 + 10 = 140

⇒ u = 70 mph

From equation (2) we have, v = u - 10 = 60 mph.

Therefore, Joel is moving with 60 mph speed. (Answer)

it happens during combustion and impacts the environment because the plants and trees take in that and it can cause them to die.

i think it's b

step-by-step explanation:

because the graph is 2 above (0,0)