mistgirl
contestada

can someone help me real quick

it costs $4 to enter the fair. each ride costs $2.50. you have $21.50. how many rides can you go on?

(P.S. can you right the equation/ inequality, please)

Respuesta :

leena

Hello!

  • Equation: y = 2.50x + 4
  • 7 rides.

We can write an expression to show this scenario. Write this in the equation format y = mx + b:

m = rate of change, or cost per ride

b = initial cost, or cost to enter the fair

y = 2.50x + 4

Solve for the amount of rides possible with $21.50:

21.50 = 2.50x + 4

Subtract 4 from both sides to isolate x:

17.50 = 2.50x

Divide both sides by 2.50:

17.50/2.50 = 7 rides.