1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ainat [17]
3 years ago
11

n Chatty Cathy’s cell phone plan she pays for minutes used plus a fixed monthly charge. For 500 minutes she pays $35 total, and

for 1500 minutes used she pays $55 total. What is her monthly fixed charge?
Mathematics
1 answer:
Vladimir [108]3 years ago
3 0

Answer

Find out  the what is her monthly fixed charge .

To prove

Let us assume that the cost per mintues = x

Let us assume that the monthly charge be = y

As given

n Chatty Cathy’s cell phone plan she pays for minutes used plus a fixed monthly charge.

For 500 minutes she pays $35 total

Than the equation becomes

500x + y = 35

As given

for 1500 minutes used she pays $55 total.

Than the equation becomes

1500x + y = 55

Subtracted 500x + y = 35 from 1500x + y = 55

1500x - 500x + y - y = 55 - 35

1000x = 20

x = \frac{20}{1000}

x = $0.02

Put in the  500x + y = 35

500 × 0.02 + y = 35

10 + y = 35

y = 35 - 10

y = $25

Therefore the monthly fixed charge be $25.




You might be interested in
David & Dan share a lottery win of £9900 in the ratio 3 : 2.
Zepler [3.9K]

Answer:

sum of ratio =3+2=5

David'share=£9900x3/5=£5940

Sum of ratio for part= 4+4+2=10

for himself=£5940x4/10=£2376

for wife=£5940x4/10=£2376

for son=£5940x2/10=£1188

his wife gets over son

£2376-£1188=£1188

7 0
2 years ago
Read 2 more answers
Write the equation of the line in fully simplified slope-intercept form
Elza [17]

Answer:

y=-5x-5

Step-by-step explanation:

The line contains points at (-2,5) and (0,-5)

(y1-y2) / (x1-x2) = slope

(-2,5) =(x1,y1)

(0,-5) = (x2,y2)

(5--5) / (-2-0)

10 / -2 = -5

y= -5x + b

plug in points for x and y to find b

5=-5(-2)+b

5=10+b

-5=b

y=-5x-5

7 0
3 years ago
Mr. McMillan and Ms. Burke are teaching their classes how to write in cursive. Mr. McMillan has already taught his class 8 lette
dybincka [34]

The number of weeks by which the students in both classes will know how to write the same number of letters will be 4 weeks.

<h3>What is the linear system?</h3>

A linear system is one in which the parameter in the equation has a degree of one. It might have one, two, or even more variables.

Mr. McMillan and Ms. Burke are teaching their classes how to write in cursive.

Mr. McMillan has already taught his class 8 letters.

The students in Ms. Burke's class, who started the unit later, currently know how to write 12 letters.

Mr. McMillan plans to teach his class 4 new letters per week.

Ms. Burke intends to cover 3 new letters per week.

Eventually, the students in both classes will know how to write the same number of letters.

Then the number of weeks by which the students in both classes will know how to write the same number of letters will be

Let x be the number of the weeks and y be the total number of the letters.

Then the equation will be

y = 4x + 8 …1

y = 3x + 12 …2

Then by solving the equations 1 and 2, we have

x = 4 and y = 24

More about the linear system link is given below.

brainly.com/question/20379472

#SPJ1

4 0
1 year ago
What is 3,4,5 plz and thank you
Tcecarenko [31]
For 3 it’s b. For 2 it’s 8. For 4 it’s the whole number
8 0
3 years ago
Which of the following made Soviet leader Mikhail Gorbachev MOST eager to end the Cold War arms race?
Ivanshal [37]
D. The economy of the Soviet Union was falling behind that of other major industrialized nations.
4 0
3 years ago
Other questions:
  • find the percent of change from June to September in the time to run a mile (the June time is 7:45 and the September time is 5:5
    11·1 answer
  • Plz I really need help with this one
    12·1 answer
  • What happens to a quotient when the divisor increases?
    15·1 answer
  • Solve lor x/5 + 6 = 10 x=​
    15·1 answer
  • 157 is 16.6% of what number
    9·2 answers
  • Pls help help me need help!!
    10·1 answer
  • Use the given graph. Determine the period of the function.
    13·2 answers
  • Solve the equation for W
    10·1 answer
  • Please help!
    8·1 answer
  • Express 0.361 as a fraction
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!