I think that it the secound one then the fourth one then the sixth one then the first one then the fifth one then third one the eighth one then the ninth one
Subtract 120 every time but I don’t know the second one
Answer:
32 + 4(h) = 60
Step-by-step explanation:
The 32 in the equation represents the $32 Ali already has. The 4 represents how much she makes per hour. And the h represents how many hours Ali needs to reach her goal of 60. Now all you need to do is find h. h should equal 7. 32 + 4(7) = 60.
Use pemdas and go from left to right
8+20/5*2
8+4*2
8+8
16
Step-by-step explanation:
we simply need to get the total distance and the total time and put them into relation, norming it to distance in 1 hour. after all, speed is always an average number over a period of time (even if it is a tiny period of time).
the total distance is
72 + 69 = 141 km
he drove 69 km going 60 km/h.
how much time did he need ?
we need to get the hours out of an expression of km and h.
so, we need to do
69 km × 1/60 km/h = 69 h / 60 = 69 minutes = 1.15 hours =
= 1 h 9 minutes
so, the total time was
48 + 69 = 117 minutes = 117/60 = 1.95 hours
the average speed for the whole trip was then
141 km / 1.95 h = 141/1.95 km / 1 h = 72.30769231... km/h