Answer:
see photo for detailed analysis
Step-by-step explanation:
X - speed of the current
40+x - speed with current
40-x - speed against current
t-time
(40+x)*t=100
(40-x)*t=60
40t+xt=100
<span> + 40t-xt = 60
</span> 80t =160
t = 2
40t+xt=100,
40*2+2x=100
80+2x=100
2x=100-80
2x=20
x=10 mi/h
10 mi/h speed of the current.
Answer: 23
Step-by-step explanation:
Answer:
j(x) = 150x
Step-by-step explanation:
f(x) goes up 45x
g(x) goes up 140x + 8
h(x) goes up 3/4x + 12
j(x) goes up 150x
j(x) has the highest multiple to be multiplied by I believe.
