The charges for an international call made using the calling card for two phone companies are shown in the table. a. What is the length of a phone call that would cost the same no matter which company is used? b. Analyze Relationships When is it better to use the card from Company B?
Phone Company Charges
Company A 35¢ plus 3¢ per minute
Company B 45¢ plus 2¢ per minute

Answers

Answer 1

Answer: 10 minutes

Step-by-step explanation:

Let x be minutes.

Toatl costs for a call are:

A:  35 + 3x

B:  45 + 2x

When will A = B?

35 + 3x = 45 + 2x

1x = 10

They are equal cost at 10 minutes


Related Questions

I need it asap thanks

Answers

Answer:

Point-slope form: y - 3 = -6/5 (x + 5)

Slope-intercept form: y = -6/5x - 3

What is the volume of a sphere with a radius of 4,4 cm, rounded to the nearest tenth
of a cubic centimeter?
223.8
294.4
0 299.1
O 356.8

Answers

Answer:

356.8 cm³

Step-by-step explanation:

Volume Sphere = [tex]\frac{4\pi r^3}{3}[/tex]

                          = [tex]\frac{4\pi *4.4^3}{3}[/tex]

                          = [tex]\frac{4\pi *85.184}{3}[/tex]

                          =  [tex]\frac{340.736\pi}{3}[/tex]

                          = 113.58π ≈ 356.8

-Chetan K

I’m assuming by 4,4 you mean 4.4 cm, in that case, we start of by cubing the radius, and get 85.184, then multiply it by 4/3 to get 113.58, then multiply that by pi and get 356.82 or rounded to the nearest tenth 356.8.

Help pls!!!!!!!!!!!!!!!!!!

Answers

Answer:

I can't see the file

Step-by-step explanation:

Estimate g(14). (Use the midpoint to get the most precise estimate.)

I know how to apply the midpoint theorem, but I don't know where I should start my intervals.

Answers

We have that for the Question "I know how to apply the midpoint theorem, but I don't know where I should start my intervals." it can be said that

Where you start your intervals are at the (x,y) co-ordinate of the Reference points

From the question we are told

I know how to apply the midpoint theorem, but I don't know where I should start my intervals.

Generally the equation for the midpoint   is mathematically given as

[tex]m=\frac{x1+x2}{2},\frac{y1+y2}{2}[/tex]

Naturally the midpoint of two point is the point in between the reference points where distances from them are equal

Therefore

Midpoints co-ordinates simply considers the co-ordinate of the two main reference points.(x,y)

Hence

Where you start your intervals are at the (x,y) co-ordinate of the Reference points

For more information on this visit

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Graph f(x) = -2/3x-3
PLS ANSWER AND SHOW HOW ITS GRAPHED ​

Answers

Answer:

Graph and solved

Step-by-step explanation:

Solve the following

Answers

b) x=4.5
c) x=35
d) x=13

Answer:

b) 2x=9=>x=9/2=4.5

c)x/5=7=>x=5×7=35

d)x/2=6.5=>x=6.5×2=13

GUYS PLEASE HELP!!!! NO LINKS!
Why is an egg a good model of a cell?

Answers

Answer:

The egg which we eat is not a single Ovum (egg cell), but an ovum with a nutrient sack (the yolk) suspended in a nutrient protein broth (the egg white). In fairness, the egg yolk is connected to the ovum, so it could be construed as one cell, but the functioning cell part is microscopic.

Find the value of a/b when a=$13. 93 and B=0. 07
Thank you.

Answers

Answer:

10

Step-by-step explanation:

A = 7, B = 2

7 = 2 * 3 + 1

7 mod 2 = 1

A = 8, B = 4

8 = 4 * 2 + 0

8 mod 4 = 0

A = 13, B = 5

13 = 5 * 2 + 3

13 mod 5 = 3

A = -16, B = 26

-16 = 26 * -1 + 10

-16 mod 26 = 10

solve for x. round to the nearest tenth of a degree, if necessary

Answers

Okay but where is the problem?

The temperature at 6 a.m. is −4∘F. The temperature is expected to increase 2∘F per hour until 3 p.m. Which equation represents this situation, where x represents the number of hours past 6 a.m., and y is the temperature at that hour?

y=2x+4

y= -4x+2

y=2x-4

y=4x-2

Answers

Answer:

C

Step-by-step explanation:

hope it helps

would appreciate brainly

Answer:

C!

Step-by-step explanation:

“The total weight of 50 identical marbles”

Answers

Answer:

50multiply8=400grams

help me plz i have 5 more

Answers

Answer:

1343

Step-by-step explanation:

Solve the Quadratic equation
8n²-56=48n

Answers

Answer:

n = {-1, 7}

Step-by-step explanation:

8n² - 56 = 48n

Subtract 48n from both sides

8n² - 48n - 56 = 0

Divide both sides by 8

n² - 6n - 7 = 0

Factor

alternately use the quadratic equation or complete the square

(n - 7)(n + 1) = 0

n = {-1, 7}


Please help ASAP! Only answer if you know the correct answer! Thanks :)

Answers

Answer:

49/101 minutes

Step-by-step explanation:

Your first part is correct the estimate will be 30 minutes because 5 miles divided by 10 miles per hour = 1/2 hours which is 30 minutes.

To solve the second part you need to use the numbers given first so 4 9/10 divided by 10 1/10. I find it easier to do improper fractions in this type of problem so I will do 49/10 divided by 101/10. Now you have to divide. The steps for dividing fractions are

1)Keep the First Fraction the Same.

2)Flip the second fraction over

3)Change the sign to multiplication

After the steps you will get 49/10*10/101

The denominator of the first fraction and the numerator of the second share a factor so you can cross them out. The factor they share is 10 and both numbers are ten so you can cross them out to one. Now you have 49/1*1/101

Since 49 and 101 don't share any factors you can now multiply. You get 49/101.

A 4.8 pound box of steaks costs $31.20. What is the cost per pound of steaks?

Answers

[tex] \frac{31.20}{4.8} = \\ [/tex]

[tex]6.5[/tex]

Thus the cost of steaks per pound is $ 6.5

Easy peasy....

The cost per pound of steaks is $6.5.

What is division?

One type of operation in mathematics is division. We divide the phrases or numbers into the same number of components during this operation.

Given, a 4.8 pound box of steaks costs $31.20.

To find the cost per pound of steak:

We take the division of total cost and total pounds in weight.

That means,

Cost per pound of steaks

= 31.20 / 4.8

= 6.5.

Therefore, the cost is $6.5 per pound of steaks.

To learn more about the division;

https://brainly.com/question/13263114

#SPJ2

the x-intercept of the graph of f(x)=3log(x-5)+2 is:

Answers

Answer:

C

Step-by-step explanation:

To find the x- intercept let f(x) = 0 , then

3log(x - 5) + 2 = 0 ( subtract 2 from both sides )

3log(x - 5) = - 2 ( divide both sides by 3 )

log(x - 5) = - [tex]\frac{2}{3}[/tex] , then

x - 5 = [tex]10^{-\frac{2}{3} }[/tex] ( add 5 to both sides )

x = [tex]10^{-\frac{2}{3} }[/tex] + 5 → C

Help please help I really need help

Answers

Answer:

i can barely see this...can you make it bigger then i can figure out what o do so i can give you the answer......

Step-by-step explanation:

is -19+ square root of 14 rational or irrational

Answers

Answer:

The answer is irrational.

Step-by-step explanation:

Any whole number +/- an irrational number will be irrational as well. Since [tex]\sqrt{14}[/tex]is irrational (it can't be expressed as a ratio of 2 whole numbers) the answer will also be irrational because you are adding it to 19 (a whole number).

What is the y-intercept?

Answers

Answer:

y- intercept = 4

Step-by-step explanation:

The y- intercept is the point on the y- axis where the graph crosses the y- axis

In this case that is the point (0, 4 ) , then

y- intercept = 4

round 49.07583 to the nearest place value given; tenth, hundredth, thousandth ten-thousandth, unit?

Answers

Answer:

tenth- 49.1

Hundredth- 49.08

thousandsths- 49.076

ten-thousandths- 49.0758

solve pls brainliest

Answers

Answer:

257% as a decimal is 2.57

0.003 as a percentage is 0.3%

2.57 is the decimal and 0.3 percent

state and prove angle sum property of a triangle

Answers

Statement:-

The sum of all the interior angles of a triangle is 180°. This is known ad the angle sum property of a triangle.

Proof :-

Consider a

Anna has 128 trees in her garden. 16 of the trees are apple trees.

What percentage of the trees in the garden are apple trees

Answers

Answer:

12.5%

Step-by-step explanation:

To change a fraction to o percentage , multiply by 100% , so

[tex]\frac{16}{128}[/tex] × 100%

= 0.125 × 100%

= 12.5%

Explain the equivalence of 7 divided by 2 or 7/2and using words.

Answers

Answer:

so this is what i think im not sure but ot will be seven dived by two . i hope this works

48 mouse traps/6 people = X mouse traps/1 person

Answers

Answer:

8 mousetraps

Step-by-step explanation:

to find how many mousetraps per person, we need to divide 48 by 6, which gives us 8.

The variable f varies inversely as the square root of g. When f = 4, g = 4. Jordan’s work finding the value of f when g = 100 is shown: f = k 4(4) = k 16 = k f = 16 f = 16 10f = 16 f = 1.6 What is the first error, if any, in Jordan’s work?

Answers

Variation can be direct, inverse or jointly

Jordan's first error is that he incorrectly calculated the value of proportionality constant

From the question, we understand that f varies directly as the square root of g.

This variation is represented as:

[tex]\mathbf{ f\ \alpha\ \frac{1}{\sqrt{g}}}[/tex]

Express as a equation

[tex]\mathbf{ f\ \ =\ k\frac{1}{\sqrt{g}}}[/tex]

When f = 4, k = 4.

So, we have:

[tex]\mathbf{ 4\ \ =\ k\frac{1}{\sqrt{4}}}[/tex]

[tex]\mathbf{ 4\ \ =\ \frac{k}{2}}[/tex]

Multiply both sides by 2

[tex]\mathbf{ k = 8}[/tex]

When g = 100, we have:

[tex]\mathbf{ f\ \ =\ k\frac{1}{\sqrt{g}}}[/tex]

[tex]\mathbf{ f\ \ =\ 8 \times \frac{1}{\sqrt{100}}}[/tex]

[tex]\mathbf{ f\ \ =\ 8 \times \frac{1}{10}}[/tex]

[tex]\mathbf{ f\ \ = 0.8}[/tex]

This means that, Jordan incorrectly calculated the value of proportionality constant

Read more about variation at:

https://brainly.com/question/1698891

Gramma gave me $400 for a saving account.It give me 7% interest rate every year.How much money do I have in that account in 3.5 years?

Answers

Answer:   506.8 (1dp)

Step-by-step explanation:

400 x 1.07^3.5 = 506.8  

i think this is the answer

Colin and Brian were playing darts. Colin scored 36. Brian scored 35 more than Colin. What was their combined score?

Answers

Answer:

107

Step-by-step explanation:

Because, 36+35=71

and 71+36=107

Answer:

107

Step-by-step explanation:

not that hard bro

divide -b⁷ + 3b³ + 4b³ + 3b² by 2b²

plz solve this fast plz​

Answers

Answer:

[tex] - \frac{1}{2} ( {b}^{6} - 7 {b}^{2} - 3)[/tex]

See image for solution

Help ASAP!!!!!
A. 1/4
​B. 4
C. - 1/4
​D. –4

Answers

Answer:

D. -4

Step-by-step explanation:

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