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A picturesque scene of a beautifully crafted car parked beside a gas station. Green countryside can be seen in the background. Behind the car, there are indicators representing quantities of 290 kilometers and 21 liters, and a larger quantity of 31 liters patiently waiting to be matched with a distance marker. No visible text present in the scene.

Kimberley's car can go 290 km on 21 L of gas. how far will her car gon on 31 L of gas?

range is proportional to the amount of fuel

290 / 21 = ? / 31

you do 290 x 31 / 20

why 290x30/ 20 not 21

To find out how far Kimberley's car will go on 31 L of gas, we can use a proportion.

Here's how to set it up and solve it:

Step 1: Set up the proportion:
Let 𝑑 represent the distance her car can go on 31 L of gas.

The proportion can be set up as:
𝑑/31 = 290/21

Step 2: Cross-multiply and solve for 𝑑:
Cross-multiplying gives:
21𝑑 = 31 Γ— 290

Step 3: Divide both sides of the equation by 21:
𝑑 = (31 Γ— 290) / 21

Step 4: Calculate the value of 𝑑:
Using a calculator, you can evaluate the expression (31 Γ— 290) / 21 to find the value of 𝑑.

The distance her car will go on 31 L of gas is approximately 424.76 km.

how do i solve this

do i use adding or multiplication?

thank you :)