4v-16= 12
4v= 28
v=7
4v-16=-12
4v=4
v=1
Final answer: v=1, v=7
Answer:
John paid $127 for football camp. He paid a $7 registration fee and $5 for each week he was enrolled in camp. What is w, the number of weeks John was enrolled in football camp?
Answer:
x=2
Step-by-step explanation:
Put all like terms on one side:
2x+3x=6+4
Simplify:
5x=10
x=2
<em>~Stay golden~ :)</em>
Given:
d(t) = 0.8t²
d(5) = 0.8*5² = 0.8 * 25 = 20
d(10) = 0.8*10² = 0.8 * 100 = 80
Average speed = distance traveled / time of travel
Average speed = 20 meters / 5 seconds = 4 meters per second
Average speed = 80 meters / 10 seconds = 8 meters per second
4 mps + 8 mps = 12 mps
12 mps / 2 = 6 mps the average speed in meters per second between 5 and 10 seconds.
65% of all vehicles are passenger cars......20 vehicles crosses the bridge
this means that 65% of 20 are passenger cars..
0.65(20) = 13 cars are passenger cars.....leaving (20 - 13) = 7 that are other vehicles.
toll bridge charges $ 1 for passenger cars and 2.50 for other vehicles...
expected toll revenue is : 13(1) + 7(2.50) = 13 + 17.5 = $ 30.50 <==