Hello,
The relationship between the number of hours a plumber works and the total work fee she charges is proportional. Her fee for 5 hours of work is $350.
Which of the following could be combinations of values for the plumber's work hours and total work fee she charges?
Solution:
Find similar ratios to 5/350
Similar Ratios,
1/70
2/140
3/210
3.5/245
4/280
6/420
7.25/507.50
Answers:
B) 3.5 hours and $245
C) 6 hours and $420
D) 7.25 hours and $507.50
Set the length of the base as x, the two equal sides are then 4x each, so the perimeter is x+4x+4x=9x
Answer:
C) $64.49
Step-by-step explanation:
let 'x' = #minutes
cost = 29.99 + 0.3(x-500)
= 29.99 + .3(115)
= 29.99 + 34.50
= $64.49
Answer: (5, -2)
Step-by-step explanation:
Substitute x-7 for y in 2nd equation
Solve for y
Answer:
5x²+15xy
Step-by-step explanation:
5x(x+3y)=
5x²+15xy
If you need more steps or more explanation, reply to this answer.