Solve the Problem Using the Elimination Method

question 122

Multiple Choice

Solve the problem using the elimination method.
-There were 470 people at a play. The admission price was $2 for adults and $1 for children. The admission receipts were $720. How many adults and how many children attended?

• A)110 adults and 360 children
• B)220 adults and 250 children
• C)250 adults and 220 children
• D)180 adults and 290 children

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Definitions:

Standard Deviation

A measure of the dispersion or variability within a set of numerical data, indicating how spread out the values are from the mean.

Variance

A statistical measure of the dispersion representing how much the data points in a data set diverge from the mean value.

Mean

The arithmetic average of a set of numbers, calculated by adding them all together and dividing by the number of numbers.

Variance

A statistical measure of the dispersion of data points in a dataset, quantifying how far each data point lies from the mean.