40mph average there totaling 3 hours, 60mph back, totaling 2 hours. 5 hours total.
Answer: Part a: b represents the base fee charged for the "house call" job
m is the hourly rate.
x is the number of hours at the job.
y represents the total cost for the job.
Part b:. The y-intercept is 65
The equation follows y=mx+b
Y= 42x + 65
Part c:. $275
Step-by-step explanation:
The difference between the two total costs, (Camilla 191 - Connor 107)
= $84. That is the rise. The run is the difference in time, 2 hours. 84/2 = 42.
m= 42
42 from 107 to find b, the base fee, 65 This is the y-intercept.
The equation is y= 42x + 65
Quick check using Camilla's bill: 191 = (42)(3) + 65
191 = 126 + 65 True!
Part C:
To find the total cost of the plumber's 5 hour job,
Y = 42(5) + 65
Y= 210 + 65
Y= $275
Answer: 53.659 seconds
Step-by-step explanation:
Given: Vega swam her leg of the race in 27.98 seconds.
Janice swam her leg of the relay race in 25.679 seconds.
Then , their combined time for their part of the relay = (Time taken by Vega) + (Time taken by Janice)
= 27.98 seconds +25.679 seconds
= (27.98+25.679) seconds
= 53.659 seconds
Hence, their combined time for their part of the relay = 53.659 seconds
-20a divided by 12b would be -1.6
Answer:
start by makeing your own graph with the line going though the two plotted points and see if the given equation fit you line. the do a commparion as ur explantion.
Step-by-step explanation:
