Call Wireless phone company charges $0.50 for the first call you make and $0.10 for each additional minute. The cost of a phone call can be expressed by the formula C = 0.50 + 0.10(m – 1), where C is the total cost in dollars and m is the number of minutes that you talk. If the bill for your phone call was $1.90, how long did you talk?
A.
12 minutes
B.
14 minutes
C.
15 minutes
D.
16 minutes

Question

Call Wireless phone company charges $0.50 for the first call you make and $0.10 for each additional minute. The cost of a phone call can be expressed by the formula C = 0.50 + 0.10(m – 1), where C is the total cost in dollars and m is the number of minutes that you talk. If the bill for your phone call was $1.90, how long did you talk?
A.
12 minutes
B.
14 minutes
C.
15 minutes
D.
16 minutes

anonymous · Answer

acc to ques. 1.90 = 0.50 +0.10(m-1) so
 1.90 -1.50 / 0.10 =14
 hence 14 = m-1 so m is equal to 15

anonymous · Answer

hahaha ppl aregetting pissed at you lol

anonymous · Answer

I'm aware of this

anonymous · Answer

lol but thnx