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Igoryamba
2 years ago
9

The history museum is hosting a special exhibition on history of flight. The admission ticket for each adult costs $7 and the ad

mission
ticket for each child costs $2. On the opening day of the exhibition, 40 tickets were sold for a total of $180. How many adults visited the
special exhibition?
Mathematics
1 answer:
stiks02 [169]2 years ago
5 0

Answer:

Use simultaneous equation for this problem

y= number of adults

x = number of children

3y + 2x = 160

y + x = 60

then we double the second equation

3y + 2x = 160

2y + 2x = 120

we cancel x by elimination

3y - 2y = 160 - 120

y = 40

Step-by-step explanation:

hope this helps

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