U call it keep change change. keep 15.7. change it to subtract and change -3.45 to just 3.45 (positive not negative)
Is this statement true or false?
Fitness levels can be measured by simple tests, such as counting the number of crunches you can do in two minutes.
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Answer:
- 90 student tickets
- 65 adult tickets
Step-by-step explanation:
For many "mixture" problems, it is convenient to use a variable for the quantity of the highest contributor. Here, we can use 'a' to represent the number of adult tickets, because adult tickets cost the most. Then the number of student tickets is (a+25), and the total revenue is ...
6a +3(a+25) = 660
9a +75 = 660
9a = 585
a = 65
(a+25) = 90
The drama class sold 90 student tickets and 65 adult tickets.