Question

Use your knowledge to re write the recipe for Banana bread. The card states it serves 10 people. How much flour is required to make enough bread for 30 people?

Answer 1

4½ cups of flour.

Step-by-step explanation:

From the recipe card

10 people will be served with bread made using 1 1/2 cups of flour.

Let the amount of flour needed for 30 people = x

We then have:

`\begin{gathered} \text{Number of persons : Amount of Flour Needed} \\ 10\colon1(1)/(2) \\ 30\colon x \\ \implies10\colon1(1)/(2)=30\colon x \end{gathered}`

We solve the ratio for x.

`\begin{gathered} (10)/((3)/(2))=(30)/(x) \\ \text{Cross multiply} \\ 10* x=30*(3)/(2) \\ 10x=(90)/(2) \\ 10x=45 \\ x=(45)/(10) \\ x=4.5 \\ x=4(1)/(2) \end{gathered}`

Therefore, we will need 4½ cups of flour to make enough bread for 30 people.