16.1k views
4 votes
8 pounds of bananas cost $24. How much would 31 pounds cost

User Marichu
by
5.1k points

1 Answer

6 votes

31 pounds cost $93

Step-by-step explanation

you can easily solve this by using a rule of three.

Step 1

Let x represents the cost for 31 pounds,the proportion is


(x)/(31)

Now


\begin{gathered} 24\text{ usd}\rightarrow8\text{ Pounds} \\ \text{the proportion must be the same, then} \\ (24)/(8)=(x)/(31) \\ 3=(x)/(31) \\ \end{gathered}

Step 2

solve for x


\begin{gathered} 3=(x)/(31) \\ x=3\cdot31 \\ x=93 \end{gathered}

Hence, 31 pounds cost $93

I hope this helps you

User Ash Ketchum
by
5.7k points