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
Georgia [21]
3 years ago
12

Please solve for a, b, and c

Mathematics
1 answer:
rusak2 [61]3 years ago
3 0

The table is:
Number of washes denoted by x: 0, 8, 12
Amount left on card denoted by y: 30, 18, 12
 
a.       Write an equation that shows the amount of dollars left on the card
Solution:
18 – 30 divided by 8 – 0 = -12/8
On simplest form is -3/2
 
The equation is y = -3/2x + 30
 
b.      Explain the meaning of the negative slope above.
As the number of car washes increase, the dollars left on the card decreases.
 
c.       What is the maximum value of x?
0 = -3/2x + 30
2/3 x 3/2 x = 30/1 x 2/3
Cancel 2/3 x 3/2 and reduce 30 by 3 we get 10, 10 x 2
x = 20

Read more on Brainly.com - brainly.com/question/7171213#readmore
You might be interested in
Calculate the following scenario for a simple interest loan.
Semenov [28]

Simple interest is a method of calculating interest on an amount for n period of time with a rate of interest of r. The amount of monthly payments is $287.5.

<h3>What is simple interest?</h3>

Simple interest is a method of calculating interest on an amount for n period of time with a rate of interest of r. It is calculated with the help of the formula,

SI = (PRT)/100

where SI is the simple interest, P is the principal amount, R is the rate of interest, and T is the time period.

Given the following details about the simple interest loan as,

Principal amount, P = $3,000

Interest rate, r = 15%

Number of instalments = 12

Since there are 12 instalments each for a month, therefore, the time period for which the loan was there is 1 year.

Now, the interest for 1 year will be,

Interest amount = ($3,000 × 1 × 15)/100

                           = $450

Further, the total amount that is needed to be paid back is the sum of the principal amount and Interest amount.

Amount needed = $3,000 + $450

                            = $3,450

Moreover, there are 12 instalments, therefore, the number of monthly payments will be,

Monthly payment = $3,450/12 = $287.5

Hence,  the amount of monthly payments is $287.5.

Learn more about Simple Interest here:

brainly.com/question/2793278

#SPJ1

6 0
2 years ago
Plz Help!
Volgvan
The stack of cards are 1 inch tall all together taking up 8 inch’s (cubed)or half of the space
4 0
3 years ago
What is the corollary to the triangle sum theorem?
Mazyrski [523]
In the triangle sum theorem, the corollary is that the triangle <span>can include only one 90 degree angle or one obtuse angle.</span>
5 0
2 years ago
I need help on this. An answer and an explanation would be great!!
charle [14.2K]

Answer:

60 & 55

Step-by-step explanation:

1. the sum of the angles 1; 2 and 3 is 180°, then

m∠1=m∠2=m∠3; ⇒m∠3=60°;

2. m∠3=m∠r; ⇒ m∠r=60°;

3. m∠α= 180-(m∠r+65°)°; ⇒ m∠α=55°

all the details are in the picture.

4 0
3 years ago
Describe the steps you would use to solve the equation<br> 2(4x - 5) + 11 = -63.
goblinko [34]
If u use the app photomath it will give u answer with the steps too
6 0
3 years ago
Read 2 more answers
Other questions:
  • Heather wants to purchase a pet from her local pet store. The pet store is offering 50% off rare exotic parrots. The original pu
    14·2 answers
  • What is half of infinity
    8·2 answers
  • Solve the three variable system. (I was just introduced to these)
    10·2 answers
  • The formula for the lateral surface area of a cylinder is S=2πrh , where r is the radius of the bases and h is the height. Solve
    5·1 answer
  • Isabel lives 2 7/9 miles from school. Janet lives 2 5/7 miles from school. Who lives farther away from school? How do you know?
    8·1 answer
  • the ratio of defective light bulbs to product to total light bulbs is 3:500. how many is expected to be defective when 12000 are
    9·1 answer
  • True or False?<br> 2+3x=5<br> If x is 1.1?
    13·2 answers
  • CAN SOMEONE PLEASE HELP ME ill give brainliest if correct
    12·1 answer
  • Hong rented a truck for one day. There was a base fee of $14.95,and there was an additional charge of 91 cents for each mile dri
    6·1 answer
  • Gotta need answers fast like asap, it’s geometry, just fill the blanks pls
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!