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
seropon [69]
3 years ago
15

Define variables and write a system of equations for each situation. Solve by using substitution.Suppose you want to join a vide

o store. Big Video offers a special discount card that costs $9.99 for one year. With the discount card, each video rental costs $2.49. A discount card from Main Street Video cost $20.49 for one year. With the Main Street Video discout card, each video rental costs $1.79. After how many video rentals is the cost the same?
Mathematics
1 answer:
MrRa [10]3 years ago
8 0

Answer:

The cost is the same after 15 video rentals

Step-by-step explanation:

Let the total cost be y

Let the number of video rentals made be x

Discount card for Big video = $9.99

Discount card for Main Street video = $20.49

Cost of 1 big video rental = $2.49

Cost of 1 Main Street video rental = $1.79

Cost of video rentals with big video:

Y = 9.99 + 2.49x………….(1)

Cost of video rentals with main street video :

Y = 20.49 +1.79x…………(2)

For the two costs to be equal, the two equations have to be equal to each other

Equating equations (1) and (2)

9.99 + 2.49x = 20.49 +1.79x

0.7x = 10.5

X = 10.5/0.7

X = 15  video rentals

You might be interested in
A ladder is placed against a wall, such that it touches the top of the wall 6 meters above the ground. The ladder is inclined at
luda_lava [24]

Your answer would be.

3.46 meters

-Yaoii

7 0
2 years ago
Find three consecutive even integers that sum up to -48
Igoryamba
We can write the equation: x + x + 2 + x + 4 = -48, where x is the least digit and x + 4 is the greatest. We get 3x + 6 = -48, 3x = -54. x = -18, so x + 2 is -20, and x + 4 is -22. Therefore, the 3 consecutive even integers that sum to -48 are -18, -20, and -22.
---
Hope this helps!
4 0
3 years ago
Consider the function f(x) = x3 + 7. What is the inverse of f(x)?
Brrunno [24]

Answer:

f(x)=x^3+7

y=x^3+7

x=y^3+7

y^3=x-7

y=cube root (x-7)

f(x) inverse=cube root of x-7

Step-by-step explanation:

7 0
2 years ago
Which of the following ordered pairs
Tomtit [17]

Answer:

D. (0, 3)

Step-by-step explanation:

7 0
3 years ago
4x4+yxy+4+y=32. what is y?​
Ann [662]

20+y2+y=32

y2+y-12=0

(y+4)(y-3)=0

y= -4 or 3

5 0
2 years ago
Other questions:
  • it takes 80 pounds of seed to completely plant 9-acre field. how many acre can be planted per pound of seed?
    7·2 answers
  • Find the area of the triangle​
    11·2 answers
  • The product of 51 and a number less than 427 is 185
    7·1 answer
  • 8/3x + 1/3x =13 1/3+5/3x
    11·1 answer
  • Julie is going to the store to buy candles. Small candles cost $2.50 and large candles cost $4.00. She needs to buy a mix of at
    10·1 answer
  • Need work shown for this please.<br><br> 7√144 - 11√45 + 6√500
    10·2 answers
  • What are two ways to find the difference 13/50 - 4.93
    10·1 answer
  • During his visit to London, George Orwell decided to ask everyone he talked to whether or not the cameras made them feel more se
    5·2 answers
  • Working alone, it takes Kristin 11 hours to harvest a field. Kayla can harvest the same field in 16 hours. Find how long it woul
    11·1 answer
  • En que se parece el Palacio Versalles y el Palacio el escorial​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!