Answer:
-0.985
Step-by-step explanation:
Refer to the image below for explanation:
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Child = $5.70
Adult = $9.80
- We can conclude that the amount of adult is double the amount of child tickets bought. (total of $556.60)
For this, you will need to divide the total amount by two and draw a tree chart with each of the numbers to get the seperation of the two. I would find out how many 9.80s or 5.70s go into $56.60 so you'll just have $500
84 miles.
You just have to take half of 56 (28) and add it to 56 to get 84
C because it simplifies to 0=0 which proves that it has infinite solutions!