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Flauer [41]
3 years ago
7

The table shows the relationship between the cost of monthly cell phone Plan A and the number of minutes used within a month. Th

e equation c= 35+0.05m describes the relationships for the cost c in dollars for minutes m used for Plan B.
Time (min) Cost ($)
0 30.00
2 30.20
4 30.40


What is the difference, in dollars, of the total costs of the cell phone plans if a customer talks for 20 minutes?



$
Mathematics
2 answers:
Rzqust [24]3 years ago
5 0

Answer:

It should be $50.00.

Step-by-step explanation:

It shows that every 2 mins. adds 20 cents to the bill. I wrote out the numbers and did this:

6 30.60

8 30.80

10 40.00

12 40.20

14 40.40

16 40.60

18 40.80

20 50.00

Leviafan [203]3 years ago
5 0

Answer:

$50

Step-by-step explanation:

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The answer is 0.000.000.01

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A 60 room hotel is filled to capacity every night at a rate of​ $40 per room. The management wants to determine if a rate increa
Oxana [17]

Answer: to maximize profit the management must continue charging $40 per room because it will obtain a profit of $1,920 better than $1,870 if it rises the rate.

Step-by-step explanation:

<u>Profit without the increase</u>

60 (number of rooms)  * $40 (rate per room)  = $ 2,400

costs of day to service = 60 (rooms) * $8 (costs day to service)= $480

Total Profit = $2,400 - $480 = $1,920

<u>Profit with the increase</u>

55 (5 fewer than before) * 42  (rate with the increase) = $ 2,310

costs of day service 55 (rooms) * 8 ( costs day to service) = $440

Total Profit  = $2,310 -$440 = $1,870

7 0
3 years ago
If a man were to sell his T.V set for 7200, he would have lost 25%. For what price must he sell it to​
vlabodo [156]

Answer:

Step-by-step explanation

S.P of a t.v = rs 7200

Loss % = 25%

Therefore, C.P = S.P (100/100-loss)

=7200(100/100-25)

=7200 x 100/75

=9600

So,now C.P = 9600

Profit% = 25%

Therefore, S.P = C.P (100+profit/100)

=9600(100+25/100)

=9600 x 125/100

=12000

So,the price he should sell to gain 25%

=12000

Hope it helps...!!!

3 0
3 years ago
Find the slope of a line perpendicular to 3x + 5y = 15.
Zielflug [23.3K]

Answer:

B)5/3

Step-by-step explanation:

"3x + 5y = 15."

Rewrite in slope-intercept form.

The slope-intercept form is  

y=mx+b

where  m is the slope and  b  is the y-intercept.

y=mx+b

Subtract  3x  from both sides of the equation.

5y=15−3x

Divide each term by  "5"  and simplify.

5y/5=15/5−3x/5

"5" and "5" cancel each other out

Divide  15  by  5

y=3-3x/5

Reorder  3  and  −3x/5

y=-3x/5+3

Rewrite in slope-intercept form.

y=−3/5x+3

Slope:-3/5

The equation of a perpendicular line to  y=−3x/5+3  must have a slope that is the negative reciprocal of the original slope.

<em>m</em>perpendicular=−1/(−3/5)

Simplify the result.

mperpendicular=5/3

hope this helps!

8 0
3 years ago
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