Steps ! 2(x + 4) = 4x + 3 - 2x + 5
1 answer:
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Answer:
Allison worked 6 hours lifeguarding and 3 hours washing cars.
Step-by-step explanation:
Let
Number of hours Allison worked lifeguarding last week = x
Number of hours Allison worked washing cars last week = y
1. Last week Allison worked 3 more hours lifeguarding than hours washing cars hours, then
<u>Lifeguarding:</u>
$12 per hour
$12x in x hours.
<u>Washing cars:</u>
$8 pere hour
$8y in y hours.
2. Allison earned a total of $96, hence
You get the system of two equations:
Plot the graphs of these two equations (see attached diagram). These line intersect at point (6,3), so Allison worked 6 hours lifeguarding and 3 hours washing cars.
Answer:
A rental car company charges $150.00 for a weekly rental and an additional $0.20 for each mile driven.
The function ,
where m is the number of miles and C is the total cost.
Since it is given that : If the rental car can only be driven a maximum of 200 miles.
Then the total cost for this is,
or
On simplify we get,
A rental Car can only be driven a maximum of 200 miles for a cost of $ 190.
Graph the function : as shown in the attachment.
