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3 years ago

Does this graph represent a proportional relationship?

Mathematics

2 answers:

joja [24]3 years ago

4 0

Yes because jsjfo ejdiq fiehw did wif wid. w

dimulka [17.4K]3 years ago

3 0

Answer: You can put either one of them but they will both be correct.

1. Sample Response: This graph does not represent a proportional relationship because it is not a straight line, and the line does not pass through the origin.

2. It is not a straight line and it automatically means it does not go through the origin which therefore means it is not a proportional relationship.

Explanation: I put the second one but got it right still but be sure to include these ideas:

-The graph is not a straight line.

-The line does not pass through the origin.

-The graph of a proportional relationship must be a straight line that passes through the origin.

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Answer:

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3 years ago

there is a beaker of 3.5% acid solution and a beaker of 6% acid solution in the science lab. Mr. Larson needs 200ml of 4.5% acid

disa [49]

Below are the choices:

A. 80 mL of the 3.5% solution and 120 mL of the 6% solution

B. 120 mL of the 3.5% solution and 80 mL of the 6% solution 

C. 140 mL of the 3.5% solution and 60 mL of the 6% solution 

D. 120 mL of the 3.5% solution and 80 mL of the 6% solution

Let fraction of 3.5% in final solution be p.

p * 3.5 + (1 - p) * 6 = 4.5 

3.5p + 6 - 6p = 4.5 

2.5p = 1.5 

p = 3/5 

3/5 * 200 = 120 

Therefore the answer is B. 120 ml of 3.5% and 80 ml of 6%.

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3 years ago

A stock market fell 75 points over a period of 5 days. What was the average change in the stock market each day?

seropon [69]

Answer:

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Divide the 75 points by the five days to find the average points lost per day.

75 points / 5 days = 15 points per day

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