+208 1. A pre-paid cell phone company charges $13.35 as a monthly access fee and $0.18 per minute of calling time.
What will the monthly cost be if you make 151 minutes of calls this month?
NOTE: Round to two decimal places for your final answer.
2.The perimeter of a rectangle is 78 cm. If the length is 28 cm, how wide is the rectangle?
Find the width of the rectangle.
3.You are choosing between two different cell phone plans. The first plan charges a rate of 22 cents per minute. The second plan charges a monthly fee of $39.95 plus 9 cents per minute.
Let t be the number of minutes you talk C 1 and C 2 be the costs (in dollars) of the first and second plans. Find the number of talk minutes that would produce the same cost for both plans
NOTE: Round to two decimal places for your final answer.
If you talk for________________ minutes the two plans will have the same cost.
4.A rectangular room is 3 times as long as it is wide, and its perimeter is 48 meters. Find the dimensions of the room.
The length is __________meters and the width is___________meters.
+129852 2.The perimeter of a rectangle is 78 cm. If the length is 28 cm, how wide is the rectangle?
Find the width of the rectangle.
Perimeter = 2 (W + L)
78 = 2 ( W + 28) divide both sides by 2
39 = W + 28
39 - 28 = W = 11
+129852 3.You are choosing between two different cell phone plans. The first plan charges a rate of 22 cents per minute. The second plan charges a monthly fee of $39.95 plus 9 cents per minute.
Let t be the number of minutes you talk C 1 and C 2 be the costs (in dollars) of the first and second plans. Find the number of talk minutes that would produce the same cost for both plans
NOTE: Round to two decimal places for your final answer.
If you talk for________________ minutes the two plans will have the same cost.
3995 + 9t = 22M
3995 = 22t - 9M
3995 = 13t
t =3995/13 ≈ 307.3 minutes will equalize the cost
