Thread: algebraic problem

a museum gives a discount to school groups on Mondays.it charges a group rate that includes a fee of $6.00( which includes the teacher).they also charge $0.50 for each child or additional adult. the cost for ms.kapales's third grade class to go to the museum last monday with two parents accompanying them was $19.50.how many children are in her class?

a) 25 b) 26 c)20 d)27

Originally Posted by BeBeMala

a museum gives a discount to school groups on Mondays.it charges a group rate that includes a fee of $6.00( which includes the teacher).they also charge $0.50 for each child or additional adult. the cost for ms.kapales's third grade class to go to the museum last monday with two parents accompanying them was $19.50.how many children are in her class?

a) 25 b) 26 c)20 d)27

what we are looking for is the number of children (x)

We know the base cost is $6.00

2 extra adults @ $.5 is $1.00.

The cost of the children

x @ $.5 is .5x

so if we add all of these up it is the total cost and we know that the total cost is $19.50 so we get



So there were 25 children