A school’s math department has money to spend on calculators. It uses the equation y = 1,000 – 80x to determine how much money is left in the account to spend on calculators, where x represents the number of calculators purchased. What is the meaning of the slope of the equation?


A. Each calculator costs $1,000.


B. The account had $1,000 before buying calculators.


C. Each calculator costs $80.


D. The account had $80 before buying calculators.

Answers

Answer 1

Answer:

C. Each calculator costs $80.

Step-by-step explanation:

Linear equation:

Has the following format:

[tex]y = mx + b[/tex]

In which m is the slope, and the meaning is how much the output changes when the input changes by 1 unit.

In this question:

Amount remaining after buying x calculators:

[tex]y = 1000 - 80x[/tex]

So the slope of -80 means that each calculator costs $80, since after buying a calculator, 80 is retired from the amount.

The answer is given by option C.


Related Questions

$5200 at 7.36% for 54 months

a. Find the interest earned.

$

b. Find the balance of the account.

$

Answers

Answer:

Step-by-step explanation:

A)5200*54/12*7.36/100=5440.44

b)5200+5440.4410,640.44

Answer:

a. $1722.24 b. $6922.24

Step-by-step explanation:

for a: 5200*0.0736*54/12= 1722.24

for b: 1722.24+5200= 6922.24

A ball thrown in the air has a height of h(t)
- 16t^2 + 50+ + 3 feet after t seconds.
Part A: What is the average rate of change for h(t) between t=0 and t = 2?

A. 36 seconds per second
B. -36 feet per second
C.-18 Seconds per second
D. 18 feet per second

PART B.Is the average of the height of the ball increasing or decreasing.

Answers

Answer:

(D) 18ft per second

Step-by-step explanation:

the average of the height of the ball is increasing from t=0 to t=2.

A bag contains 12 red marbles, 10 green ones, 2 yellow ones, 19 blue ones, & 9 purple marbles. What is the probability of pulling out a green marble?​

Answers

Add up all the amounts of marbles, which gives you 52, then see how many greens ones there are.
So the answer would be 10/52

Jillian’s school is selling tickets for a play. The tickets cost $10.50 for adults and $3.75 for students. The ticket sales for opening night totaled $2071.50. The equation 10.50 a plus 3.75 b equals 2071.50, where a is the number of adult tickets sold and b is the number of student tickets sold, can be used to find the number of adult and student tickets. If 82 students attended, how may adult tickets were sold?

adult tickets

Answers

Answer:

1035.75

Step-by-step explanation:

Answer:

your answer is 168 adult tickets

Step-by-step explanation:

Just got 100 on edge

pls help asap!!!!!!!!!!!

Answers

Answer:

I can not see it well

Step-by-step explanation:

i don't see what your asking but thanxs for the points

i'll give you free point about 40 just look asap because people may snag it

I NEED HELP ( WILL GET BRAINLYIST FOR CORRECT ANSWER)

Answers

Answer:

36 units.

Step-by-step explanation:

The diagram shows a piece of cheese in the shape of the triangular prism.Work out the area of the cling film needed to cover the cheese

Answers

Answer:

488.4 cm²

Step-by-step explanation:

Area of cling film needed = surface area of the triangular prism = 2(B.A) + P×H

Where,

B.A = triangular base area = ½*base*height

height = 10.5 cm

base = √(13.7² - 10.5²) = √77.44 = 8.8 cm

B.A = ½*8.8*10.5 = 46.2 cm²

P = perimeter of the triangular base = 10.5 + 13.7 + 8.8 = 33

H = height of prism = 12 cm

Surface area of triangular prism = 2(46.2) + 33*12

= 92.4 + 396

= 488.4 cm²

can someone help me? its due in 10 minutes.

Answers

Answer:

The first option is correct.

Answer:

A= ×/87=43/100

I'm terrible in explaining this, but the answer is A. x = 37.41. Since you cross-multiply and divide. 87×43=3741 and 3741÷100=37.41

April, May and June have

90

sweets between them. May has three-quarters of the number of sweets that June has.


April has two-thirds of the number of sweets that May has. How many sweets does June have?
help

Answers

Answer:

A

Step-by-step explanation:

The month of June has  40 sweets

Let the number of sweets in the month of June be  P

Given that April,  May and June collectively have 90 sweets

Given that May has three quarters of number of sweets as that of June

So we can write

[tex]\rm Number\; of \; sweets\; in \; May = \dfrac{3P}{4 } .......(1) \\[/tex]

Similarly it is given that April has two third of sweets as that of May month and hence we can write

[tex]\rm Number\; of\; sweets \; in \; April = \dfrac{2}{3} \times \dfrac{3P}{4} = P/2 ......(2)\\[/tex]

As the total number of sweets in  April,  May and June is  90

Let the number of sweets in  May be "M" and in April be "A"

We can write the following equation and solve it further

[tex]\rm M + A + P = 90\\From \;equations \; (1) \; and \; (2) \\[/tex]

[tex]\rm P + 3P/4 + P/2= 90\\\\2.25 \; P = 90\\P = 40[/tex]

So we can conclude that the month of June has  40 sweets

For more information please refer to the link given below

https://brainly.com/question/1301963

2(3−8y) what do i do please help

Answers

Answer:

−16y+6

Step-by-step explanation:

2(3−8y)

=(2)(3+−8y)

=(2)(3)+(2)(−8y)

=6−16y

=−16y+6

Answer:

6-16y

Step-by-step explanation:

2(3-8y)

distibute 6-16y

2. The sum of two numbers is 52. The
difference of the two numbers is 6.
What are the numbers?

Answers

Answer:

29 and 23

Step-by-step explanation:

Step 1: rewrite the sentences as equations:

equation 1: x+y=52

equation 2: x-y=6

Step 2: add those two equations together to get:

2x=58

x=29

Step 3: substitute x in one of the first equations to get y:

29-y=6

y=23

Step 4: Check with the other equation:

x+y=52

29+23=52✔

Select all that are equivalent to sin H.


1. cos H

2. cos Y

3. sin Y

4. sin W

5. tan W

6. cos(90-H)

7. sin(90-H)

Answers

Answer:

i believe 1-3-5

Step-by-step explanation:

Answer: the 2nd and 6th

Step-by-step explanation:

i did the test thing

When 5 times the number it is added to 3, the result is -37. What is the number?

Answers

The equation is 5x +3 = -37

Subtract -3

5x = -40

Divide 5

x = -8

x = -8

Brainiest please!

Answer:

-8

Step-by-step explanation:

Subtract 3 from -37. Which gives -40. Then you divide that by 5. Which gives you -8.

Solve the equation.

y + 54 = 80

Answers

26+54=86

y=26
the value of y is 26.

The sum of - 7/9 and 11/18 is _____

Answers

Answer:

[tex]-\frac{1}{6}[/tex]

Step-by-step explanation:

Common denominator: 18

-14/18 + 11/18

= -3/18

Reduce:

-1/6

-1/6 is the answer hope this helps

write 134 in decimals​

Answers

Answer:

1.34

Step-by-step explanation:

Can someone explain to me why this is supposed to be 21 and not -21

Answers

Answer:

21

Step-by-step explanation:

The reason why the answer is 21 is because a minus with minus makes a positive.

-2 - -17 - -6

-2 + 17 + 6

15 + 6

= 21

a subtraction symbol and a negative number next each other basically changes to addition. So in this example, -2 - -17 is the same as saying -2 + 17 which = 15. 15 - -6 is the same as 15 + 6 which is 21.


hope that helps! :)

hector has a $50.00 gift card to purchase online music. he uses his gift card to buy online music. he uses his giftcard to buy 2 albums for $7.50 each. he will spend the rest of his gift card on individual songs that cost $1.50 each . what is the maxinum number of individual songs hector can buy. A.23 B.24 C.28 D.33

Answers

Answer:

mk 50- (7.50x2)

50-15=35

then 1.50 can be shoved in 35.00

a)23

it will only go up to 34.5

Step-by-step explanation:

sorry your answer is a)23

y
4-
3+
2+
1

-4
-3
-2
-1
1
2.
3
4
-1+
-2+
-3+

Answers

What even is this lol

Part A
Darren has already earned $80 mowing lawns. He earns $20 per lawn. He needs at least $135 for a new string trimmer. Write
an inequality to determine how many more lawns Darren will need to mow to have at least $135, where n represents the
number of lawns he needs to mow
O A) SO + 20n < 135
OB) 80 + 20 2135
O c) SOn + 20 2 135
OD SOn + 20 <135

Answers

Answer:

A

Step-by-step explanation:

Karen used one-third of her total stamps on a campaign for charity. Karen used 60 stamps on the campaign

Answers

Answer:

She has 180 stamps in total

Step-by-step explanation:

Answer:

180 stamps

Step-by-step explanation:

if she used 60 stamps and that was only a thrid of it, then all you have to do is multiply by 3

Formula: 60·3=180

1. Graph y = x?. Try and do it without using the table

Answers

y = x^2 is a quadratic equation. A quadratic equation is an equation of the second degree, meaning it contains at least one term that is squared. This what a graph like dat would look like.

What is the completely factored form of this polynomial?
81x4 − 16y4

Answers

Answer:

( 9 x^ 2 + 4 y ^2 ) ( 3 x + 2 y ) ( 3 x − 2 y )

The completely factored form of the polynomial 81x^4 - 16y^4 is:

(3x + 2y)(3x - 2y)(9x^2 + 4y^2)(9x^2 - 4y^2)

Determining the completely factored form

Apply the difference of squares formula:

(9x^2)^2 - (4y^2)^2

Factor the difference of squares:

(9x^2 + 4y^2)(9x^2 - 4y^2)

Apply the difference of squares formula again:

(3x)^2 + (2y)^2

(3x)^2 - (2y)^2

Factor the difference of squares:

(3x + 2y)(3x - 2y)

Putting it all together, the completely factored form of the polynomial 81x^4 - 16y^4 is:

(3x + 2y)(3x - 2y)(9x^2 + 4y^2)(9x^2 - 4y^2)

Learn more on polynomials here https://brainly.com/question/4142886

#SPJ2

Which one is closer to 1 whole , 1 1/4 , 1 1/12 , 1 5/12 ? explain

Answers

Answer:

1 1/2

Step-by-step explanation:

We need to convert all of these into one denominator. 1 1/4 needs to be converted into 12ths. 4 x 3 = 12 1 x 3 = 3. Our new fraction instead of 1 1/4 is     1 3/12.

Which is closer to the whole number?

1 1/12 is 1/12 away from a whole number

1 3/12 is 3/12 away from a whole number

1 5/12 is 5/12 away from a whole number

Hope this helps!

Simply (2^3)-2


0 - 1/64
0 1/64
0 2
0 64

Answers

The correct answer is,

[tex] \frac{1}{64} [/tex]

Answer:

1/64

Step-by-step explanation:

when exponents are separated by parentheses, multiply them

so (2³)^-2 = 2^-6

whenever an exponent is negative, change into fraction form with one as the numerator and the other term goes into the denominator and the exponent now becomes positive

2^-6 = [tex]\frac{1}{2^6}[/tex] = [tex]\frac{1}{64}[/tex]

A right triangle has an area of 72 square feet. If the lengths of the sides are multiplied by 6, what is the area of the new triangle?

Answers

Answer:

The answer is 2592 ft squared

Step-by-step explanation:

Brainliest?

Answer:

The answer is 2592:)

Step-by-step explanation:

Need help ASAP
Will mark you brainlist

Answers

The correct answer is y=5/6+4
Y = 5/6x + 4

5/6 is the slope and 4 is the y-intercept

The answer is 873.17

Answers

Answer:

wat

Step-by-step explanation:

Answer:

To what exactly...?

Step-by-step explanation:

HLEP ME PLEASE MY HOMEWORK IS SO HARDDDDDDDD

Answers

Answer:

the other side is 4

Step-by-step explanation: its a right triangle

Step-by-step explanation:

this is my answer if u are asking for the adjacent length...sorry if its wrong

PLS HELP (pls pls pls pls pls)

Answers

Answer:

Step-by-step explanation:

Basically, since we know that the ticket gives the $2.50 discount we know that the d value will be always $2.5 less than the corresponding p value. The only table that follows that rule is option A).

option A option A option A
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