Martha rolls a number cube with sides 1, 2, 3, 4, 5, and 6. what is the probability of not rolling a 3?

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:

the answer is 375 miles

step-by-step explanation: