Answer:
x = 30
Step-by-step explanation:
a) The sum of the angles along the line is 180°. That means ...
2x° +90° +x° = 180°
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b) Subtracting 90° and dividing by 3° gives ...
3x° = 90°
x = 30
Answer:
Therefore 164 children and 89 adults swam at the public pool that day.
Step-by-step explanation:
Given that,
253 people used the public swimming pool.
The daily prices for children are $1.50 and for adults are $2.25.
Let the number of children be x.
Then number of adult is (253-x)
The total money collect on that day is ![=\$[(1.50\times x)+2.25(253-x)]](https://tex.z-dn.net/?f=%3D%5C%24%5B%281.50%5Ctimes%20x%29%2B2.25%28253-x%29%5D)
![=\$[1.50x+569.25-2.25x]](https://tex.z-dn.net/?f=%3D%5C%24%5B1.50x%2B569.25-2.25x%5D)
![=\$[569.25-0.75x]](https://tex.z-dn.net/?f=%3D%5C%24%5B569.25-0.75x%5D)
According to the problem,





Therefore 164 children and (253-164)=89 adults swam at the public pool that day.