Question

Suppose that the water level of a river is 34 feet and that it is receding a rate of 0.5 foot per day. Write an equation for the water level, L, after d days. in how many days will the level be 26 feet?

( y=mx×b)

Answer 1

the equation: 34 - 0.5d = L

STEPS:
1) 34 - 0.5d = 26
+ 0.5d + 0.5d
2) 34 = 26 + 0.5d
-26 -26
3) 8 = 0.5d
/0.5 /0.5
4) 16 = d

it would take 16 days for the water to be at 26 feet