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SpyIntel [72]
3 years ago
5

A phone company offers two monthly plans. Plan A costs $10 plus an additional $0.15 for each minute of calls. Plan B costs $19 p

lus and additional $0.10 for each minute of calls.
For what amount of calling do the two plants cost the same?

What is the cost when the tow plans cost the same?
Mathematics
1 answer:
Len [333]3 years ago
7 0

Answer:

Step-by-step explanation:

A phone company offers two monthly plans. Plan A costs $10 plus an additional $0.15 for each minute of calls. Plan B costs $19 plus and additional $0.10 for each minute of calls.

For what amount of calling do the two plants cost the same?

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X=7 -2x+10<br> What does this equal?
mote1985 [20]

Step-by-step explanation:

Since X is given to you (in this case, it’s 7), all you have to do is plug it into the equation.

1. -2(7) + 10

When a variable or a number is directly outside a number, it means you should multiply the two numbers, no matter what.

Now that we know this: -2 * 7 = (-14) When a negative is multiplied by a positive, it turns out negative.

2. (-14) + 10: Let’s say (for instance), that I owe 14 dollars to a friend. If I pay 10 of it, how much do I owe my friend? It would be -4 because you’re still in debt, and haven’t payed your friend all of her 14 dollars back.

3. You should come up with an answer of (-4) because of all of the steps given.

If something doesn’t make sense, please make a note of it and tell me. Otherwise, have a splendid day.

6 0
2 years ago
Read 2 more answers
1. What is the approximate area of a circle with a diameter of 20 inches?
ad-work [718]

Answer:

1. 100\pi

2. 27 cm^{3}

3. 30

Step-by-step explanation:

Area = \pir^{2}

       = \pi x 10x^{2}

       = 100\pi

Volume = l x w x h

             = 3 x 3 x 3

             = 27

7 0
2 years ago
The _____ states that control is enhanced by concentrating on the exceptions to, or significant deviations from, the expected re
dalvyx [7]
The <span><u>principle of exception</u> is the managerial principle that states that </span><span>control is enhanced by concentrating on the exceptions to, or significant deviations from, the expected result or standard.
This also refers to the fact that only what is important in a budget or a plan is shown to the manager, while the rest is excluded. </span>
4 0
3 years ago
Solve for x in the equation x2 + 4x-4=8.
iren [92.7K]

{x}^{2}  + 4x - 4 = 8 \\  =  >  {x}^{2}  + 4x - 4 - 8 = 0 \\  =  >  {x}^{2}  + 4x - 12 = 0 \\  =  >  {x}^{2}  + 6x  - 2x - 12 = 0 \\  =  >  x(x + 6) - 2(x + 6) = 0 \\  =  > (x - 2)(x + 6) = 0 \\  =  > x = 2 \:  \:  \: or \:  \:  \: x =  - 6

<u>Answer</u><u>:</u>

x = -6 or x = 2

Hope you could get an idea from here.

Doubt clarification - use comment section.

7 0
2 years ago
Log 10(x + 3) – log 10(x-3) = 1
nadezda [96]

Answer:33/9

Step-by-step explanation:

Log10(x+3)-Log10(x-3)=1

Log10((x+3)/(x-3))=1

(x+3)/(x-3)=10^1

(x+3)/(x-3)=10

Cross multiply

x+3=10(x-3)

Open brackets

x+3=10x-30

Collect like terms

10x-x=30+3

9x=33

Divide both sides by 9

9x/9=33/9

x=33/9

4 0
3 years ago
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