Yand x have a proportional relationship, and y = 7 when x = 2. what is the value of y when x = 5?

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form or

Step 1

Find the value of the constant k

we have

substitute

so

the equation is equal to

Step 2

Find the value of y when

substitute in the equation

just do 5.2 + 2 ( 7.2) and 1/3 x 3 (.9) and youv'e got your equation. 0.9( 9/10) + 7.2 ^2 = 16.4 hope i could !

step-by-step explanation:

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