Answer:
The speed of the boat in still water is 10 miles / hour
Step-by-step explanation:
The trip there, and the trip back are the same -- 30 miles
Let the rate of the boat = x
Let the rate of the water = y
30 = 2*(x + y)
30 = 6*(x - y)
Divide the top equation by 2
Divide the bottom equation by 6
15 = x + y
<u>5 = x - y </u> Add the equations together.
20 = 2x Divide by 2
20/2 = x
x = 10
22. Approximately a 75% on the test
23. 4% of 10,000.00 is 400.00 and 5% of 10,000.00 is 500.00 so, if Holly took the 4-year loan she'd pay a total of 1,600 to interest and if she took the 6-year loan she'd pay a total of 3,000 to interest charges. which means there is a difference of 1,400 dollars between each loan.
Answer:(332)
Step-by-step explanation:
standard form of stated triominal =
Your welcome
I think it might be 56y^2 but I could be wrong