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14 votes
4th grade math question Joey walk 333 ft how many yards did Joey walk? At 5 yds vs 15 ft

User Belegnar
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1 Answer

16 votes
16 votes

111 yards

Explanation

Step 1

to solve this we need to know the equivalence


\begin{gathered} 3\text{ ft= 1 yd} \\ 3\text{ ft}\leftrightarrow1\text{ yd} \end{gathered}

Now, we can apply a rule of three

let x represents the number of yards in 333 ft, so

so


\begin{gathered} if \\ 3\text{ ft}\rightarrow\text{ 1 yd} \\ \text{then} \\ 33\text{ ft}\rightarrow x \end{gathered}

as the ratio is the same, we have a proportion


\begin{gathered} \frac{3\text{ ft}}{1\text{ yd}}=\frac{33\text{ ft}}{x\text{ yd}} \\ (3)/(1)=(33)/(x) \end{gathered}

Step 2

now, solve for x


\begin{gathered} (3)/(1)=(333)/(x) \\ \text{cross multiply} \\ 3\cdot x=333\cdot1 \\ 3x=333 \\ \text{divide both } \\ (3x)/(3)=(333)/(3) \\ x=111 \end{gathered}

so, the answer is 111 yards

I hope this helps you

User Iyvin Jose
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