Mathematics High School

The number of DVDs sold at a store in a month was 925 and the number of DVDs sold decreased by 12 per month. The number of Blu-ray discs sold in the same store in the same month was 507 and the number of Blu-ray discs sold increased by 26 per month. Let d represent the number of discs sold and t represent the time in months. Write a system of equations by filling in the blanks:

Answers

Answer 1

Answer:

See below

Step-by-step explanation:

DVD's sold:

d = 925 - 12t

Blu-rays sold:

d = 507 + 26t

Solving the system we get the number of month t when the disks sold are equal:

925 - 12t = 507 + 26t26t + 12t = 925 - 50736t = 418t = 418/36t = 11.6 months

Related Questions

Walter is planning to invest in a savings account which pays annual interest compounded monthly. His projected account balance after
tyears is given by the expression below.
3,570(1 + 0.03/12)^12t
Which of the following statements best describes the expression?

Answers

Answer:

b

Step-by-step explanation:

It is D because I said soo

What percentage is 26 out of 130?

Answers

Answer: 20%

I hope this helps, and Happy Holidays! :)

Answer:

20 percent

Step-by-step explanation:

26/130=0.2

multiply that by 100 equals 20

answer both and i will give you branliest

Answers

I think is 24 and 28

Hope this helps

To learn more, go to this website on public health C. Then answer the following question.
What are some issues that you consider to be related to public health? List them and explain your reasons.​

Answers

Answer:

Answers will vary but might address the following:

garbage disposal and recycling

sex education in schools

nutritious food supply in schools

7 7/10 + 6 2/3 help please

Answers

Answer:

7.436 rounded to 7.44 hope this helps!

Step-by-step explanation:

7.7 + 6 2/3= 7.436

If f(x)=2(x-3)x4, what is f(-2)? PLEASE HELP ILL GIVE BRAINLIEST

Answers

Answer:

f(-2) = -40

Step-by-step explanation:

f(x) = 2(x - 3) • 4

Plug in -2 for x.

f(-2) = 2(-2 - 3) • 4

Follow PEMDAS

f(-2) = 2(-5) • 4

f(-2) = -10 • 4

f(-2) = -40

Answer:

[tex]f(x) = 2(x - 3) \times 4 \\ f(x) = 8(x - 3) \\ f( - 2) = 8( - 2 - 3) \\ f( - 2) = 8 \times ( - 5) \\ \boxed{f( - 2) = - 40}[/tex]

- 40 is the right answer.

Which us a solution to the followung linear equality?
A. (0, 0)
B. (2, -2)
C. (0, 2)
D. (-3, 4)​

Answers

B probably sorry if I’m wrong

Which of the following is most likely the next step in the series? O B. On # on # OCH oath​

Answers

Answer:

I don't really understand the question? could you explain please :)

Step-by-step explanation:

Which statement is not always true?
1) The sum of two rational numbers is rational.
2) The product of two irrational numbers is rational.
3) The sum of a rational number and an irrational number is irrational.
4) The product of a nonzero rational number and an irrational number is irrational.

Answers

Answer:

its 2

Step-by-step explanation:

for a fact the product of two rational numbers is rational in that statement is always true

What is the answer to the division problem shown?
9)4590

Answers

510 would be your answer. I hope this helped! :)

Answer:510

Step-by-step explanation:Can double check internet

Solve the equation by completing the square.

x^2+18x=7

please show me how to also. :)

Answers

Answer:

x=-2[tex]\sqrt{x} 22 -9[/tex]

Step-by-step explanation:

A particular satellite is 10 ft wide. A
model of it was built with a scale of 1 in :
2 ft. How wide is the model?

Answers

3 ft

Step-by-step explanation:

Find the missing side:
Which is the right one

Answers

Answer:

D , drinking coffee

Step-by-step explanation:

hope this helps you somehow

Abigail swims a number of laps, y, for every number of minutes, x. She swims 8 laps in 2 minutes

Answers

Answer:

8y-2x

Step-by-step explanation:


PLS HELP TON OF POINTS AND BRAINLIEST

Answers

Answer:

sss axiom

Step-by-step explanation:

Answer:

wa pow

Step-by-step explanation:

Please help due soon!

Answers

H = 2sqrt2
D = 6sqrt3

In a 45,45,90 triangle the hypotenuse is (x)sqrt2 while the side lengths are equivalent being a single value x. Therefore, when given the hypotenuse and solving for the leg, divide 4 by sqrt2 to get 4sqrt2/2 which simplifies to 2sqrt2 when the denominator and numerator cancel.

In a 30,60,90 triangle the short leg x is across from the 30 degree angle meaning the angle across from the 60 degree angle is x times the sqrt of 3. Therefore the long leg is 6sqrt3

a)
Multiply:
2y x 6y2 x (-4y)​

Answers

Answer:

-48y⁴

Step-by-step explanation:

2y × 6y² × (-4y)​

-48y⁴

Answer=-48y*4
2y x 6y*2 x(-4y) =
-48y*4

Use the diagram below to answer the question. There is a small building that is 24 feet tallThe fire fighter is standing 7 feet away from the building.

Answers

Answer:

24- 7 = 17

Step-by-step explanation:

please help me 56 points

Answers

Answer:

Are you trying to solve for x?? orrr? what

Step-by-step explanation:

I can help you just gotta be specific

9
.
ABCD is a rhombus.
Find each angle.
Reason:

Plz answer ASAP, thank you

Answers

Answer:

Step-by-step explanation:

I sympathize. The question is not very clear: you don't know what A and B really are (I mean which vertex).

However it is a rhombus, and you are to assume that B follows A. So put A anywhere and make B follow it. They are supplementary which means they add to 180 degrees. All rhombi have that property.

A + B = 180

A/B = 2/1

Cross Multiply the second equation

A = 2*B

Put 2B into the first equation.

2B + B = 180         Combine the left terms

3B = 180                Divide both sides of the equation by 3

B = 180 / 3

B = 60

B = 60

A = 180 - 60 = 120

Label the two acute angles as 60 and the two obtuse angles as 120.

Acute: means less than 90

Obtuse: means more than 90

16
Jamar skis down Mount Spalding at a constant rate. After skiing for two minutes, Jamar is at an elevation of 2,100 feet. After skiing for 5 minutes, Jamar is at an
elevation of 150 feet. What is the rate of change, in feet per minute, of Jamar's elevation?
A-700
B
-650
С
650
D 700

Answers

you would need to find out how much feet he dropped in the space of 3 mins by subtracting 2,100 and 150 that will give you 1950 then you divide that by 3 which count as your minutes and you get 650 feet per minute

Pls help I need this done soon and I suck at math

Answers

Answer: 4.5

Hope this helps :)

WILL GIVE BRAINLIEST FOR RIGHT ANSWER
What is the solution to this system of equations?

Answers

Answer:

A) (-2, 4)

Step-by-step explanation:

the answer is A
hope this helped

A slow baot to China travels at a constant speed of 17.25 miles per hour for 200 hours. How far was the voyage

Answers

Distance = rate x time

Distance = 17.25 x 200

Distance = 3,450 miles

Answer: the answer is 3450

Step-by-step explanation:

I need help
Write a linear inequality to represent the graph

Answers

Answer:

y < 1/2x -5

Step-by-step explanation:

1/2 is the slope

-5 is the y intercept

Kathy has $50 in her bank account right now. After three
days she had $35 left. What is her rate of change per day?
Think about if she is making or spending money. Just write
the number.

Answers

Answer:

$5

Step-by-step explanation:

Is the following relation a function?

Relation:
X Y
-4 2
-2 1
0 0
1 2

The domain:
{-2,-4, 0, 1 }

The range:
{ 0, 1, 2 }

Answers

It is a function because when the x’s repeat then it's a none function

Plz help i need to turn it in in 30 min.

Answers

Answer:

First space:1000

Second space:1.1

Third space11000

Step-by-step explanation:

Moises ate 10% of the candies in the bag. If Moises ate 16 candies, how many candies were there total in the bag?

Answers

Answer:

160

Step-by-step explanation:

10% of the candies is 16, and to get 100% from 10% is to multiply by 10.

So 10% *10 = 100%, then by association if 16 = 10%, then 16*10 will be the total 100%.

Which of following is the graph of y -(X+ 1)-37

Answers

Answer:

The third graph(left to right)

Step-by-step explanation:

the vertex would be (-1,-3) from the formula.

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