Swimming Pool On a certain hot summer's day, 140 people used the public swimming pool. The daily prices are $1.25 for children and $2.00 for adults. The receipts for admission totaled $214.00. How many children and how many adults swam at the public pool that day?

88 (children) and 52 (adults).

Step-by-step explanation:

1. if the number of the children is 'x' and the adults is 'y', then total number 140 people is x+y=140, - this is the first equation;

2. if the earned money is 214 USD and 1.25 USD for child and 2 USD for adult, then this means: 1.25x+2y=214, - this is the second equation;

3. using two equations above it is possible to make up and solve the next system of two equations:

4. Finally, the answers is:

children ('x') - 88; adults ('y') - 52.

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2