two parallel lines are graphed on a coordinate plane.how many of the lines could represent proportional relationship?Explain.

Answers

Answer 1
Answer:

Solution:

You need minimum of  two lines which are parallel or coincident to represent proportional relationship.

Suppose two lines in one dimensional plane is Coincident.These lines are represented by a and b. Then to represent proportional relationship between them ,we can write it as follows

a = K b

or, b= Ta, where K and T are proportionality constant.

→→Line in two dimensional coordinate plane, which passes through origin or are Coincident, represents proportional relationship.  

1. 2 x + 3 y= 5

2. 4 x + 6 y =10

Line 2 = 2 × Line 1

2. y= k x is equation of any line passing through origin, where k is constant of proportionality between x coordinate and y coordinate.



Answer 2
Answer:
It's not necessary that either one represents a proportional
relationship.  But if either one does, then the other one doesn't. 
They can't both represent such a relationship.

The graph of a proportional relationship must go through
the origin.  If one of a pair of parallel lines goes through
the origin, then the other one doesn't. (If two parallel lines
both went through the origin, then they would both be the
same line.)


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A woman wants to send a framed photograph of her family to her parents. The frame is 12 in. long and 7 in. wide. Will the frame lay flat in a box that has a square​ base, height 4 in.​, and volume 536 in. cubed​?

Answers

Yes the frame will be flat

the pet store sells bags of pet food. there are 4 bags of cat food. one sixth of the bags of food are bags of cat food. how many bags of pet food does the pet store have?

Answers

28 bags if you include the cat food (which you would)
The answer is 24.

Work:
4 x 6=24

4=cat food bags
6=denominator of fraction
24=total bags of food

katia makes crafts using glass jars She can buy packages of 12 jars for $9 how many jars can kitia buy with $45

Answers

Hello!

If Katia can buy packages of jars for $9, we can determine how many packages she can purchase with $45 by using the formula:

45/9 = 5

We divide the total number of money that she has by the amount of money one package of jars costs. Now, the question also asks how many jars she can buy, not just how many packages.

We know that she can buy 5 packages, and that there are 12 jars in each package. To find the total number of jars she can buy, we will multiply 5 by 12.

5 x 12 = 60

Katia can buy 60 jars with $45.

I hope this helps you! Have a lovely day!

- Mal

If a - 3= 7, then 2a - 14 =

Answers

a=7+3   ->   a=10

2a-14= 2×10-14
        =20-14
        =6

At the farmers market you can buy a bag of 18 potatoes for $5.40. what is the unit price

Answers


(5.40)/(18)  =   (x)/(1)   =  (5.40)/(18)  /  (18)/(18)  =  (0.3)/(1)  x = 0.3
The unit price should be 0.3 if I did it right

The tallest building in the world, the Burj Khalifa in Dubai, is 0.828 kilometers high. What is the building’s height in centimeters?

Answers

Answer:

82,800 centimeters.

Step-by-step explanation:

The tallest building in the world, The Burj Khalifa in Dubai is 0.828 kilometers high.

We have to convert this unit to centimeters.

As we know 1 km = 1000 meters

                     1 meter = 100 centimeters

Therefore,    1000 meter = 1000 × 100 = 100,000 centimeters.

0.828 km = 0.828 × 100,000 = 82,800 centimeters.

The height of the Burj Khalifa is 82,800 centimeters.

the building is 82,800 centimeters high