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
Radda [10]
3 years ago
7

You go to an arcade and purchase a card with game credits. After playing 5 games you have 33 credits left. You play 4 more games

and you have 21 credits left. Write an equation that represents the number of credits y on the cards after x games.
Mathematics
1 answer:
Amanda [17]3 years ago
6 0

Answer:

y=-3x+48

Step-by-step explanation:

We will use slope-intercept form of equation to write our equation. The equation of a line in slope-intercept form is: y=mx+b, where m= Slope of the line, b= y-intercept.

To write the equation that represents the number of credits y on the cards after x games, we will find slope of our line.

We have been given that after playing 5 games we have 33 credits left. We play 4 more games and we have 21 credits left. So our points will be (5,33) and (9,21).

Let us substitute coordinates of our both given points in slope formula: m=\frac{y_2-y_1}{x_2-x_1},

m=\frac{21-33}{9-5}

m=\frac{-12}{4}=-3

Now let us substitute m=-3 and coordinates of point (5,33) in slope intercept form of equation to find y-intercept.

33=-3\cdot 5+b    

33=-15+b    

33+15=b    

48=b    

Upon substituting m=-3 and b=48 in slope-intercept form of an equation we will get,

y=-3x+48

Therefore, our desired equation will be y=-3x+48.

You might be interested in
I really need help!! can u pwease help ;-;
Nata [24]

Answer:

b

Step-by-step explanation:

6 0
3 years ago
How do you solve this
fiasKO [112]
(((x + y) / 3) + (1 / x)) / (5 + (15 / x))
The best way is to make it one fraction.
Multiply by ((3x/3x) / (3x/3x)) to remove the other fractions.
((x(x + y)) + 3(1)) / (5(3x) + 3(15))
(x^2 + xy + 3) / (15x + 45)
Then factor to simplify
(x^2 + xy + 3) / (3(x + 15))



4 0
3 years ago
Anyone wanna help with this?????
madreJ [45]
The answer is c hope it’s right
4 0
3 years ago
Assuming the conditions regarding the motion represented in the graph remain the same, determine the acceleration of the object
vovikov84 [41]

(a)

We can see that

this is a straight line

and this is the graph of velocity

we know that

acceleration is the derivative of velocity

so, slope of curve of velocity is acceleration

so, we will find slope of this line

We can select any two points

(0,4) and (5,7)

we can use slope formula

m=\frac{y_2-y_1}{x_2-x_1}

now, we can plug points

m=\frac{7-4}{5-0}

m=0.6

we know that slope of line is always constant irrespective of any value of t

so, acceleration will always be same irrespective of any value of t

so, we will get acceleration

a(t)=0.6m/s^2............Answer

(b)

we can see that acceleration is constant

and we know that

derivative of constant is always 0

so, instantaneous rate of acceleration at t=10s is 0........Answer

7 0
3 years ago
Read 2 more answers
Katie has 4 grape candies and 3 cherry candies
nadya68 [22]

Answer:

She now has 7 candies

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • A statistic class has 9 boys and 11 girls. The teacher selects 3 students at random . Find probability that all are boys.
    14·1 answer
  • Algebra 2 help please.
    5·1 answer
  • Assume a gas is at a constant temperature. If its initial pressure, final pressure, and initial volume are 150 kPa, 200 kPa, and
    15·1 answer
  • What is the area of the house (including the drawing room, TV room, balcony, hallway, kitchen, and bedroom)?
    14·1 answer
  • What is r if -4(r+3) = -42
    9·2 answers
  • In a sale, normal prices are reduced<br> by 25%.<br> The sale price of a calculator is<br> £8.82
    9·1 answer
  • Apply the distributive property to: 2(6*+4)
    11·1 answer
  • Show your organized detailed work on a separate sheet of paper. Solve for
    10·2 answers
  • Struggling with compare functions and need lots of help
    15·1 answer
  • <img src="https://tex.z-dn.net/?f=%20-%2010a%20-%209n%20%2B%2016%20-%2030%20%2B%203n%20%2B%2015a%20%2B%2050%20%2B%20a%20%3D%20"
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!