Answer:
Step-by-step explanation:
- The speed of the boat in the lake = x
- The speed of the current = 3 km/h
<u>Required equation:</u>
- 54 / (x + 3) + 42 / (x - 3) = 96/x
- 9x(x - 3) + 7x(x + 3) = 16(x + 3)(x - 3)
- 9x² - 27x + 7x² + 21x = 16x² - 144
- 6x = 144
- x = 144/6
- x = 24 km/h
Answer:
18/48=20/50 is wrong
Step-by-step explanation:
Because 18/48=37.5% and 20/50=40%
Hope it helps
Answer:
b : $0.22 on edg.
Step-by-step explanation:
Lol just get a calculator and math paper. This is not cool, u aren't in college. Im in 7TH GRADE and I can do this garbage...
beeeeeeeeeeeeeeep hope it helps
