You want to make lemonade. You use 3/4 C of lemon juice for every 2 cups of water. How much of lemon juice and
water do you need to make 33 cups 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:

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm

this linear equation would have just one solution.

step-by-step explanation:

the reason why this would have one solution is that it is an expression with just one variable. since that variable is not raised to a power, it will always have just one solution.