<u>Answer:</u>
Speed of the boat in still water = 6.125 miles/hour
<u>Step-by-step explanation:</u>
We are given that a boat travels 33 miles downstream in 4 hours and the return trip takes the boat 7 hours.
We are to find the speed of the boat in the still water.
Assuming 
to be the speed of the boat in still water and 
to be the speed of the water.
The speeds of the boat add up when the boat and water travel in the same direction.
And the speed of the water is subtracted from the speed of the boat when the boat is moving upstream.
Adding the two equations to get:
+ 
___________________________
Solving this equation for and substituting the given values for 
:
Therefore, the speed of the boat in still water is 6.125 miles/hour.
A= 1/2 bxh because if you are trying to find area you have to use the the formula A=1/2 bxh
Answer:
7
Step-by-step explanation:
7 shows up twice
all other numbers show up only once.
Answer:
28
Step-by-step explanation:
Let's set the ratio as
7x : 9x
If you add all the states that border an ocean and do not, you will get 48 states (because Alaska and Hawaii are not part of the continental US, as they do not touch the "main" part of the country)
So, we can write this equation.
7x + 9x = 48
Simplify.
16x = 48
Divide both sides by 16.
x = 4
Now, find how many states border an ocean. In our ratio, the number of states that border an ocean was 7x. Substitute x = 4 into 7x
7 * x = 7 * 4 = 28
The number of states that border an ocean is 28.
I hope this helps! Feel free to ask any questions!
Answer:
greater
Step-by-step explanation: 45 and 40
