If you drew a card from a standard deck of 52 playing cards and then replaced it, and if you repeated this 200 times, about how many times would you expect to draw a face card (king, queen or jack)?

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:

thats not a system of equations, that is a solution

if you are looking for the unit rate then the answer would be 9 because unit rate is distance divided by time.

step-by-step explanation: