Timmy uses 1 1/2 cups of sugar for every 2 gallons of lemonade he makes. Enter the number of cups of sugar Timmy uses for 13 gallons of lemonade

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:

47.28 or 47.2857143

step-by-step explanation:

you just divide 331 by 7 and you get that answer. ( i think so tho)