A group of adults and children went to a cinema, tickets for adults were $12 each and for children, $9. All together there were 20 people in the group and the tickets cost a total of $204. How many children went to the cinema?
Equations and Inequations
Equations and inequalities describe the relationship between two mathematical expressions.
Linear Functions
A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.
A group of adults and children went to a cinema, tickets for adults were $12 each and for children, $9. All together there were 20 people in the group and the tickets cost a total of $204. How many children went to the cinema?
A total of 25 toy vehicles were ordered by a store. Some a tricycyles and some are bicycles. The vehicles have a total of 64 wheels. How many are tricycles?
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