Math  /  Numbers & Operations

QuestionThe ratio of shells to driftwood Gus found is shown on the ratio table. Complete the ratio table to make an equivalent ratio. \begin{tabular}{|l|l|l|} \hline Shells & 9 & 36 \\ \hline Driftwood & 3 & \square \\ \hline \end{tabular}

Studdy Solution

STEP 1

1. The ratio of shells to driftwood is consistent across the table.
2. We need to find the missing value in the driftwood row that maintains the equivalent ratio.

STEP 2

1. Determine the initial ratio.
2. Set up a proportion to find the missing value.
3. Solve the proportion.

STEP 3

Determine the initial ratio from the given values in the table.
The initial ratio of shells to driftwood is 93 \frac{9}{3} .

STEP 4

Set up a proportion using the initial ratio and the given value for shells in the second column.
93=36x\frac{9}{3} = \frac{36}{x}

STEP 5

Solve the proportion for x x .
Multiply both sides by x x to isolate x x on one side:
9x=3×369x = 3 \times 36

STEP 6

Calculate the value of x x .
9x=1089x = 108
Divide both sides by 9 9 :
x=1089=12x = \frac{108}{9} = 12
The completed ratio table is:
\begin{tabular}{|l|l|l|} \hline Shells & 9 & 36 \\ \hline Driftwood & 3 & 12 \\ \hline \end{tabular}

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