You pay 3.3 cents per minute for long-distance phone calls on your phone. Your phone bill is $3.40. Write and solve an equation to find the number of minutes m of long-distance calls you made.
A. ; 103 minutes
B. ; 11 minutes
C. ; 83 minutes
D. ; 10 minutes
0.033m = 3.4
m = 3.4 / 0.033
m = ? minutes
To find the number of minutes of long-distance calls you made, we can set up an equation based on the given information.
The cost per minute is 3.3 cents, which is equivalent to $0.033 (since there are 100 cents in a dollar).
Let's call the number of minutes m.
The total cost of long-distance calls is $3.40. Therefore, the equation is:
0.033m = 3.40
To solve for m, we need to isolate it on one side of the equation. To do that, we divide both sides of the equation by 0.033:
(0.033m) / 0.033 = 3.40 / 0.033
m = 3.40 / 0.033
Evaluating the expression on the right-hand side, we find:
m ≈ 103.03
So, you made approximately 103 minutes of long-distance calls.
Therefore, the correct answer is A. 103 minutes.