4 years ago

Use the information in the table to find the constant of proportionality and write the equation.

Mathematics

2 answers:

Artist 52 [7]4 years ago

6 0

Answer:

On Edge its

2.5

and

y = 2.5x

Digiron [165]4 years ago

5 0

Answer:

y = (5/2)x

Step-by-step explanation:

A proportional relation can be written as ...

y = kx

Solving for k, you divide by x to get ...

y/x = k

The contant of proportionality is the ratio of y to x. Any pair of x and y will do for computing k. The first pair requires no reduction in the fraction that results:

5/2 = k

So, your equation is ...

y = (5/2)x

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andriy [413]

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3 years ago

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Here is an equation 2(x + 9) = -15. What are three different equations that have the same solution as that equation? Show or exp

igor_vitrenko [27]

Answer: 1) 2x+18=-15

2) -33+18

Step-by-step explanation: 1) multiply the outer number by the numbers inside the parentheses : 2 times x would = 2 because x is not by itself so it would be X=1x and you are multiplying 2x1 which = 2 and add the variable x so it would be 2×, and same with 18, you multiply 9x2 which =18 and thats how i got 2x+18 doesnt matter if i havent found the x yet because we already know what it equals to which is -15... 2) X=16.5 so to check we do 2×-16.5 which = -33 and add 18 it = -15

(IM NOT SURE ABOUT THE THRID ONE )