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
SSSSS [86.1K]
4 years ago
11

The phone company Ringular has a monthly cellular plan where a customer pays a flat monthly fee and then a certain amount of mon

ey per minute used on the phone. If a customer uses 420 minutes, the monthly cost will be $104. If the customer uses 720 minutes, the monthly cost will be $164.
A) Find an equation in the form y=mx+b,
y=mx+b,
where x
x
is the number of monthly minutes used and y
y
is the total monthly of the Ringular plan.
Mathematics
1 answer:
nirvana33 [79]4 years ago
3 0
(420,104)(720,164)
slope = (164 - 104) / (720 - 420) = 60/300 = 1/5

y = mx + b
slope(m) = 1/5
(420,104)...x = 420 and y = 104
now we sub and find b, the y int
104 = 1/5(420) + b
104 = 84 + b
104 - 84 = b
20 = b

so ur equation is : y = 1/5x + 20

You might be interested in
How many factors does 18 have
Zepler [3.9K]
Factors of 18: 1, 2, 3, 6, 9, 18

So, it has 6 factors.
8 0
3 years ago
Please help me...I will give brainliest. Please dont answer if you dont know. I really need this. Thankyou have a good day:)
enyata [817]

Answer:

7: 45.2 (rounded from 45.21)

8: 114.5 (rounded from 114.45)

9: 115.9 (rounded from 115.86)

10: 105.6 (rounded from 105.56)

and of course the unit is cm3

Step-by-step explanation:

4 0
3 years ago
SIMPLIFY- working on algebra <br> -x-4x
blsea [12.9K]

Answer:

The correct answer is,

- 5x

5 0
3 years ago
A rectangular plot of land that contains 1500 square meters will be fenced and divided into two equal portions by an additional
WINSTONCH [101]
Let x = the length of the rectangle
Let w= the width

Two sections are required, hence 2w of fence required
2x+3w=500

this can be written as:
3w=1500-2x
w=(1500-2x)/3

Area=x*w
replacing w with our expression:
A=x(1500-2x)/3
A=(500x-2x^2)/3

This is a quadratic equation, if we find the axis of symmetry we will know what value of x gives maximum area:
Axis of symmetry: x=-b/2a
From our equation we get:
a=-2/3; b=1500/3
thus
x=(1500/3)/(-(-2/3))
x=750
thus the maximum area will be given by length of 750
3 0
4 years ago
The first term of GP where second term is 2 and sum of infinity is8 it will be​
PtichkaEL [24]

Answer:

a = 4

Step-by-step explanation: Given that

ar=2 where a is the first term and is the common ratio.

ar=2 ............1

Also give that a/1-r = 8 where a is the first term and r is the common ratio as well.

a/1-r = 8 ......... 2

From equation 1 make r the subject

ar=2

r= 2/a...........3

Put equation 3 into 2

a/1-2/a =8

a÷1-2/a

a = 8(1-2/a)

a= 8/1-16/a

a/1= 8a-16

a^2= 8a-16

Rewriting the above equation

a^2-8a+16=0

This will eventually be

a^2-8a+16=0

(a-4)^2= 0

a =4

4 0
3 years ago
Other questions:
  • Help for number 5 please
    14·1 answer
  • Which of the following is a statistical question? A. How many students know how much they weigh? B. What is Kaycee's weight? C.
    8·1 answer
  • Find the mean of this group of numbers. 8, 6, 14, 22, 3, 5 (Round to the nearest whole number)
    14·1 answer
  • Plz help me answer this question
    9·1 answer
  • Can you please help me on -8(n+6)=-7(n+7)
    15·2 answers
  • Is this figure a triangle?
    12·1 answer
  • Which is the solution to 5- x/2=12
    7·1 answer
  • 62x+2.63x = 1<br> Solve<br> EN
    5·1 answer
  • The equations of three lines are given below. Line 1: y = - 3/4 x + 3 Line 2/8 x - 6y = 2 Line 3/- 3y = 4x + 7 For each pair of
    5·1 answer
  • M What is<br> Enter your answer in the box.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!