To determine the remaining balance, you have to subtract the monthly payment times the number of payments from the purchase price. Speaking mathematically, the equation would be
r = $1350 - $75m
Thus, the answer is letter C.
The method of solving "by substitution" works by solving one of the equations (you choose which one) for one of the variables (you choose which one), and then plugging this back into the other equation, "substituting" for the chosen variable and solving for the other. Then you back-solve for the first variable.
The area of a circle is PiR^2.
Since we know the radius, 1, we can square it and then multiply it by Pi.
Your answer is 3.14, since 1^2 is 1, and 3.14 x 1 = 3.14
The answer would be 7 miles. I can see that the initial charge is $35. For every mile there is a $2 fee. I found this by looking at how much the fee increases from 1 mile to 3 miles. There’s a $4 increase. So $4 divided by 2 miles is equal to 2. 1 mile is equal to $2 after the initial price. I counted by 2s from 41 to 49. Every count of 2 is a mile. When I landed on 49 I was at the 7th mile. A half of a mile is equal to $1. I know this because from 7 miles to 8.5 miles, there is a $3 increase. The 8th mile would be $51, but the half of a mile increases the cost by $1. Sorry if it’s very wordy. The answer is 7 miles though!
I'm pretty sure you did it correctly
