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garik1379 [7]
3 years ago
11

3. You are looking into two long distance telephone plans offered by GT&T. The “One Rate 5 cents” plan has a monthly fee of

$7.95 and all calls are 5 cents per minute. The “One Rate 7 cents” plan has a monthly fee of $4.95 and all calls are 7 cents per minute. Under what circumstances is one plan less expensive than the other?
a. The "One Rate 5 cents" plan is less expensive for calls lasting less than 1.5 minutes. The "One Rate 7 cents" plan is less expensive for calls lasting more than 1.5 minutes.

b. The "One Rate 7 cents" plan is less expensive for calls lasting less than 1.5 minutes. The "One Rate 5 cents" plan is less expensive for calls lasting more than 1.5 minutes.

c. The "One Rate 5 cents" plan is less expensive for calls lasting less than 150 minutes. The "One Rate 7 cents" plan is less expensive for calls lasting more than 150 minutes.

d. The "One Rate 7 cents" plan is less expensive for calls lasting less than 150 minutes. The "One Rate 5 cents" plan is less expensive for calls lasting more than 150 minutes.
Mathematics
2 answers:
melomori [17]3 years ago
6 0
 D. After 150 minutes, the 5 cent one is more.

Hope this helps!
spayn [35]3 years ago
5 0

Answer:

D.The "One Rate 7 cents" plan is less expensive for calls lasting less than 150 minutes. The "One Rate 5 cents" plan is less expensive for calls lasting more than 150 minutes.

Step-by-step explanation:

let the total number of minutes of calls be x minutes.

Now let us find the total cost incurred in both plan for x mins.

Plan 5 cent : 7.95+0.05x

Plan 7 cent : 4.95+0.07x

Let us find the time at which both the plans will give you same Bill.

Hence

7.95+0.05x=4.95+0.07x

7.95-4.95=0.07x-0.05x

3=0.02x

x=150

Hence at 150th min, both the plan will charge you same cost. Hence the plan giving you less Bill for 100 mins will give you high Bill in 200 mins. Let us calculate the bill incurred by both plan at 100th min.

Plan 5 cent : 7.95+0.05×100=12.95

Plan 7 cent: 4.95+0.07×100=11.95

Hence plan 7 cent is lesser than 5 cent for calls more than 150 mins

Let find which plan cost you cheaper

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One bag would be 2.7 kg. If you equally pour 8 kg of oats into 3 bags, you divide 8 by 3 which gets you 2.666666666666667 (rounded to one decimal place is 2.7, it depends to what decimal place the question asks you to round your answer to).
4 0
2 years ago
The complex numbers corresponding to the endpoints of one diagonal of a square drawn on a complex plane are 1 + 2i and -2 – i.Wh
Musya8 [376]

On the complex plane, the number a+bi is mapped onto the point with coordinates (a,b).

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So, the endpoints of the diagonal are the points (1,2) and (-2,-1). These are points A and C in the attached figure.

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6 0
3 years ago
Ms. Trowbridge will receive a 40% discount off her first cell phone bill. Her monthly cell phone plan charges a flat monthly fee
Sholpan [36]

Answer: $51.00

Step-by-step explanation:

Since $0.20 is charged per minutes , that is , the amount charged for 300 minutes will be :

300 x 0.20 = $60

Her monthly cell phone plan charges a flat monthly fee of $25.00 , that is the total amount charged will be

$60 + $25

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There is a 40% discount , then we have

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So, the amount of her first cell phone bill = $85 - $34

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8 0
3 years ago
Which of following equations are identities. Check all that apply.
igomit [66]
I think answer should be d. Please give me brainlest I hope this helps
4 0
3 years ago
Read 2 more answers
Please helpp pleaseee​
Elena L [17]

Answer:

i belive it is 900

Step-by-step explanation:

(n-2)180

(7-2)180

(5)180

900

5 0
3 years ago
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