Answer:
x = 11
Step-by-step explanation:
1) A line is equal to 180°. Subtract 70° from the 180°:
180 - 70 =
110
2) To find x set 7x +33 equal to 110:
110 = 7x +33
3) Subtract 33 from both sides:
77 = 7x
4) Divide both sides by 7
x = 11
I would live to help but i cannot see the wuestion very well.. mind writting it oit in a commet?
To find the average speed, we need to find his speed during 3/4 of the trip and then the 52.5 miles.
So you know that 52.5 is 1/4 of his total trip. That means if we multiply that by 3, that's how many miles he traveled in 2.5hrs. (157.5)
To calculate speed, divide distance by time.
For 3/4 of his trip (157.5), it took him 2.5 hours.
157.5/2.5 = 63mph
For the remaining 52.5 miles, it took him an hour.
52.5/1 = 52.5mph
Now average those two speeds to get the average speed for the whole trip.
(63+52.5)/2= 57.6mph
