Asked by Jessica
A plumber charges $45 for a service call, plus $70/h for her time.
a. Find the cost of a two hour service call.
b. How long was a services call that cost $150?
Also .......
as the weight held by a spring increases, the length of the spring increase proportionally. suppose a 2-lb weight stretches a spring to 15 in., and a 12-lb weight stretches the same spring to 20 in. what is the length of the spring with no weight attached?
a. Find the cost of a two hour service call.
b. How long was a services call that cost $150?
Also .......
as the weight held by a spring increases, the length of the spring increase proportionally. suppose a 2-lb weight stretches a spring to 15 in., and a 12-lb weight stretches the same spring to 20 in. what is the length of the spring with no weight attached?
Answers
Answered by
Henry
a. C = 45 + 70*1 = $115 = Cost.
b. 45 + 70X = $150,
70X = 150 - 45 = 105,
X = 1.5h.
Jessica, check your 4-18-11,2:45pm post
b. 45 + 70X = $150,
70X = 150 - 45 = 105,
X = 1.5h.
Jessica, check your 4-18-11,2:45pm post
Answered by
ho le chong
sooka my dik
Answered by
Ping Pong Ding Dong
sook me hary bllz
Answered by
Anonymous
slope of the line through A(2, 6) and B(8, -1)?
Answered by
lucy:)
a. cost=45+70*2=45+140=$185
b. $150-$45=$105 $105/$70=1.5 hrs
b. $150-$45=$105 $105/$70=1.5 hrs
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