Answer:
rate of motorboat: b
rate of current: c
So the rate the boat travels upstream is $b - c$, and the rate it travels downstream is $b + c$
Step-by-step explanation:
d = rt
200 = (b - c)\cdot 5
200 = (b + c)\cdot 4
b - c = 40
b + c = 50
Adding these equations, we get:
2b = 90
b = 45
So
c = 50 - 45 = 5
<u>Therefore the rate of the boat is 45kph, and the rate of the current is 5kph</u>
Hope this helps :)
Answer:
since u said about i assume we round
67 to 70 ppl
23$ to 20$
70x20
1400 they payed around 1400$
accurate answer
67x23
1541$ they payed 1541$ exactly
Answer:
y = -5/4x - 8
Step-by-step explanation:
Slope = m = -5/4
y = -5/4x + c (or b, depending on where you're from)
You can sub (-8, 2) and (-4, -3) into y = -5/4x - c and both are the same to where c = -8
Therefore, the equation is = y = -5/4x + (- 8)
= y = -5/4x - 8
Hope this helps
Answer:
-1
Step-by-step explanation:
