Paul is comparing the cost of cell phone services. At CellCoA, the phone he wants costs $305 and the unlimited calling plan cost
s $45 per
month. At CellCoB, Paul can purchase the same phone for $350 and get an unlimited calling plan for $30 per month. In how many months
will both plans cost the same?
These equations, which are graphed below, represent the situation.
y = 45x + 305
y= 30x + 350
Here, x represents the
number of months and y represents the amount paid.
80
70
60
10)
month. At CellCoB, Paul can purchase the same phone for $350 and get an unlimited calling plan for $30 per month. In how many months
will both plans cost the same?
These equations, which are graphed below, represent the situation.
y = 45x + 305
y= 30x + 350
Here, x represents the
number of months and y represents the amount paid.
80
70
60
10)
1 answer:
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Answer:
1)positive slope
2) 6
3) w = 12t
4)
Step-by-step explanation:
1) The slope of line is given by tan(∅), Where ∅ is the angle of line with positive x axis. Here The value of ∅ is between 0 and 90 degrees, so tan(∅) is positive, which means slope is positive.
2) It is given that y=24 and x=4, inserting in the given equation, we get .
3) The earning rate is given by $12 per hour. If the number of working hours are t, then the total earnings are .
4)The slope is given by , , where (x1,y1) and (x2,y2) are endpoints. Thus, here above the slope is given by,