The formula for simple interest is:


We are going to convert the percent (12) into a decimal.

Then, we are going to put the months into years.

Let's plug in the values:

The total amount paid for the trip is $180.81Have a nice day! :)
Answer:
9r
Step-by-step explanation:
1.5r - 3r + 10.5r
10.5r + 1.5r = 12r
12r - 3r = 9r
Final Answer = 9r
Hello!
Your answer is Quote:
"The quantity you don't know is the dependent variable. That is the variable that depends on all the other quantities. With the dependent variable by itself on one side of the equation, you have everything you don't know on one side and everything you do know on the other side."
Answer:
24.2 marks
Step-by-step explanation:
25 + 36 + 20 + 15 + 24 + 30 + 38 + 32 + 22 = 242
since there are 10 students we divide 242 by 10 and get 24.2
108 miles 3 hours = 36 mph upstream
108 miles 2 hours = 54 mph downstream
bv = boat velocity in still water
cv = current velocity
bv -cv = 36
bv +cv = 54 Adding both equations
2*bv = 90
boat velocity in still water = 45 mph
since bv + cv = 54
then we know the current velocity = 9 mph