15 In a leichtman research group survey of 950 tv households 75.3% of them had at least one internet connected tv device

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

answer: i don't understand. what are the options

step-by-step explanation:

thats not a system of equations, that is a solution