Question

read the problem.

at skyrocket amusement park, 30% of the rides are roller coasters. there are a total of 18 roller coasters. how many rides are there at skyrocket amusement park in all?

pick the model that represents the problem.

chart 1: 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% (pink bars), 0 at left, 18 below 30%
chart 2: 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% (teal bars), 0 at left, ? below 30%

how many rides are there at skyrocket amusement park in all?

blank box rides

Explanation:

Step1: Define total rides as \( x \)

30% of \( x \) equals 18, so \( 0.3x = 18 \)

Step2: Solve for \( x \)

\( x = \frac{18}{0.3} = 60 \)

Step3: Identify correct model

The problem asks for total rides (unknown), so the model with "?" at 30% (representing 18 as 30% of total) is correct. The blue model has "?" at 30%, matching.

Answer:

The blue model (with "?") is correct.
60 rides