Answer:
y=-x+24
Step-by-step explanation:
Answer:
36 miles.
Step-by-step explanation:
We have been given that Karina rode her bike up a mountain trail at an average of 4 mph. Then she rode it back down the trail at an average of 20 mph. The entire trip took 3 hours.

Substitute the given values:




The total distance is 72 miles, so the distance going up would be half of 72.

Therefore, Karina went 36 miles up the mountain.
Answer:
y = 7x/5 - 5
Step-by-step explanation:
m = 7/5
y - 2 = 7/5(x - 5)
y - 2 = 7x/5 - 7
y = 7x/5 - 5
Answer:
5. x = -3
6. x = -2
7. x = 1/2
8. x = 9/5
Step-by-step explanation:
Answer:
x=900
Step-by-step explanation:
100-10=90
90/100=0.9
x*0.9=810
x=810/0.9
<em>x=900:)</em>
hope it helps!!
Have a great day