Google A hiker is walking down a mountain. she walked 7975 feet in 25 minutes. In that time, she descended 1595 feet from the top of the mountain. she then walked 8050 feet in 25 minutes. In that time, she 1610 descended more feet. Express the average rate of change in altitude of the hiker from her starting point to her ending point as a unit rate.

50- 250 is correct i did that one too

step-by-step explanation:

96 39 cause 135 -96=39 im smart (i used a calculater)

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15