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kow [346]
3 years ago
10

Determine if the correlation between the two given variables is likely to be positive or negative, or if they are not likely to

display a linear relationship. The retail price of a particular smartphone and the number of units sold at that price
Mathematics
1 answer:
aleksley [76]3 years ago
4 0

Answer:

no correlation

Step-by-step explanation:

The price of the smartphone is fixed beforehand, therefore price does not depend upon the number of units sold.

Hence, there is no correlation between the two given variables.

Hence, no correlation would be the answer.

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Help me Plz I’m stuck
spin [16.1K]

Answer:

Use all the given information:

<em>Price of a slice in $ -</em><em>  x</em>

<em>Number of slices-  </em><em>3</em>

<em>Total cost of  slices-</em><em>  3x</em>

<em />

<em>Price of chopped cheese in $- </em><em> 2+x</em>

<em>Number of chopped cheeses-</em><em>  4</em>

<em>Total cost of chopped cheeses-</em><em>  8+4x</em>

<em />

<em>Total cost-  </em><em>7x+8</em>

<em />

Step-by-step explanation:

We are told that the price of a slice is x and that Dashaun bought 3 slices.

So to find the total amount paid for slices, multiply the price by the number of slices:

3*x=3x

We are told that the price of chopped cheese is $2 more than a slice. Use y as the cost for chopped cheese:

y=2+x

Dashaun bought 4 chopped cheeses.

To find the total cost of chopped cheeses bought, multiply the cost per cheese by the amount of cheese purchased:

4y

Insert the value of y:

4(2+x)

Use the distributive property:

8+4x

This is the total cost for the chopped cheeses.

To find the total of lunch, add the prices for the slices and cheeses together:

T=3x+8+4x\\\\T=7x+8

The total cost for lunch is <em>7x+8</em>

:Done

4 0
3 years ago
Create a list in steps, in order, that will solve the following equation. 3(x+1^2)=108
Sergio [31]

Answer: x=35

Step-by-step explanation:

1. Divide both by 3

2. Simplify-x+1=36

3. Subtract 1 form both sides

You answer will be x=35

4 0
3 years ago
Read 2 more answers
Use multiplication to find 2 equivalent fraction for 3/4 and 4/5
Contact [7]
Equivalent fractions for 3/4 are 6/8 and 9/12

Equivalent fractions for 4/5 is 8/10 and 12/15
7 0
3 years ago
What is the solution to this system of equations 3x+y=17 and x+2y=49
11Alexandr11 [23.1K]

Answer:x=-3 y=26

Step-by-step explanation:

3x+y=17.............(1)

x+2y=49..............(11)

From (11) x=49-2y

Substitute x=49-2y in 3x+y=17

3(49-2y) + y=17

Open bracket

147-6y+y=17

147-5y=17

Collect like terms

5y=147-17

5y=130

Divide both sides by 5

5y/5=130/5

y=26

Substitute y=26 in x+2y=49

x+2(26)=49

x+52=49

Collect like terms

x=49-52

x=-3

7 0
3 years ago
If the ratio of boys to girls in the school band is 2 to 3, which of these show possible numbers
Andru [333]

Answer:

A

Step-by-step explanation:

Simply guess and check, meaning the boys category must be divisible by 2 and the girls category must be divisible by 3

A: 24 boys ÷ 2 = 12 (equals a whole number so it is divisible; not a decimal)

36 girls ÷ 3 = 12 (both of the boys and girls are divisible by their corresponding numbers)

Yes

Now make sure the boys are a lower count than the girls as the ratio says it should be 2 to 3, meaning there are more girls than boys

B: 20 ÷ 2 = 10 (divisible)

35 ÷ 3 = 11.666 (this is a decimal answer so it is not divisible)

No

C: 36 ÷ 2 = 18

24 ÷ 3 = 8

Yes, they are divisible

Now lets check if boys have a lower count than girls

36 boys > 24 girls

This is not the solution as it doesn't reflect the correct ratio of less boys than girls

D: 35 ÷ 2 = 17.5 (not divisible)

20 ÷ 3 = 6.66 (not divisible)

8 0
3 years ago
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