Answer:
33 i think
Step-by-step explanation:
sorry im not that smart but i did the math so it should be 33
Answer:
4:10, 2:5 16:40
Step-by-step explanation:
just multiply or divide
Answer:
12.5 s
Step-by-step explanation:
If acceleration is constant, speed is proportional to time. To increase the speed by 50 km/h, the car will need an additional time given by ...
t/(50 km/h) = (20 s)/(80 km/h)
t = (20 s)(50/80) . . . . . multiply by 50 km/h
t = 12.5 s
It will take 12.5 more seconds for it to reach a speed of 130 km/h.
Answer:
720
Step-by-step explanation:
6 x 120=720
Every 1 cm=120 km
So multiply both sides by 6 and you get
6 cm= 720 km
Research scientists use a standard practice called the _____ method to help them understand phenomena.