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Victoria's fans the two spinner shown 500 times. Solve a proportion to predict the number of times the sum is 4, 5, or 6. Enter the credit answers in the boxes.

User Vestronge
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1 Answer

4 votes

To get a sum of 4,

We need to establish a proportion

For the first spin

The values are 1, 2, 3, 4, 5,

Second spin 2

The values are 1, 2, and 3

Establishing a proportion


\begin{gathered} (4)/(2)\text{ = }(x)/(2) \\ \text{Cross multipy} \\ 4\text{ x 2 = x }\cdot\text{ 2} \\ 8\text{ = 2x} \\ \text{Divide both sides by 2} \\ (8)/(2)\text{ = }(2x)/(2) \\ x\text{ = 4} \\ \end{gathered}

User Wismin
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