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olga nikolaevna [1]
3 years ago
8

John is trying to find the relationship between a student's age and the number of pets that he or she owns. He collects data fro

m a random sample of students at his high school. He plots the data on a scatter plot.
What relationship between age and number of pets is John, begin emphasis, most, end emphasis, likely to see?

A. constant

B. negative

C. positive

D. no correlation
Mathematics
1 answer:
Tcecarenko [31]3 years ago
7 0
The correct answer would be D.) no correlation.
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Answer:

A proportion is simply a statement that two ratios are equal. It can be written in two ways: as two equal fractions a/b = c/d; or using a colon, a:b = c:d. The following proportion is read as "twenty is to twenty-five as four is to five."

Step-by-step explanation:

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2. Seiji and Gavin both worked hard over the summer. Together they earned a total of $425. Gavin earned $25 more than Seiji.
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Answer:

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Step-by-step explanation:

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What is -40/-63 simplified?
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4 years ago
Solve the system of equations by first multiplying 2x + y = 1 3x + 3y = 15 Write the solution as an ordered pair:_____
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Multiply the equation 2x + y = 1 by 3 to obtain same coefficients of y.

\begin{gathered} (2x+y=1)\times3 \\ 3\cdot2x+3\cdot y=3\cdot1 \\ 6x+3y=3 \end{gathered}

Substract the equation 3x + 3y = 15 from 6x + 3y = 3 to eliminate the terms of y.

\begin{gathered} 6x+3y-(3x+3y)=3-15 \\ 3x=-12 \\ x=-\frac{12}{3} \\ =-4 \end{gathered}

Substitute -4 for x in the equation 2x + y = 1 to obtain the value of y.

\begin{gathered} 2\cdot(-4)+y=1 \\ -8+y=1 \\ y=1+8 \\ =9 \end{gathered}

So solution of equations is (-4,9).

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