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I got two questions and would like details on how to figure them out. For some reason I get some word problems, but others I don't.

 

1. The freshman math class took a trip to Math O Land. There were 76 students and 10 chaperones, and the total admission cost for the group was $800. Student tickets cost $2 more than twice the chaperone tickets.

 

Write and solve an equation to find the cost of a student ticket. Show your work and explain the meaning of your variable.

 

2. Mr.Klos (Yes my math teacher made these questions) owns 3 Ferrari's and 2 Lamborghini's. The cost for all of them was $2,000,000. The Ferrari's cost $10,000 less than the Lamborghini's. How much did he pay for all the Ferrari's.

 Nov 13, 2015
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1) Since a ticket for a chaperone is less than a ticket for a student, let  x  represent the cost of a chaperone's ticket.

Then, a student's ticket is 2 + 2x.

The cost of 10 chaperone tickets is 10x.

The cost of 76 student tickets is 76(2 + 2x) =  152 + 152x.

Total cost:  10x + (152 + 152x)  =  162x + 152.

Equation:  162x + 152  =  800

                          162x  =  648

                                 x = $4.00  (cost of a ticket for a chaperone)

                         2 + 2x  =  2 + 2(4.00)  =  $10.00  (cost of a ticket for a student)

2)  Let the cost of a Lamborghini = x.

Then, the cost of a Ferrari  =  x - 10,000

3(Ferrari) + 2(Lambo)  =  2,000,000

       3(x - 10000) + 2x  =  2,000,000

         3x - 30,000 + 2x =  2,000,000

                5x - 30,000  =  2,000,000

                              5x  =  2,030,000

                                x  =    $406,000   (cost of a Lamborghini)

                 x - 10,000  =  406,000 - 10,000  =  $396,000  (cost of a Ferrari)

 Nov 13, 2015

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