A miniature golf course charge different prices for adults and children on Saturday 50 adults and 50 children played Andy Golf Course earned $800 on Sunday 65 adults in 75 children play and the golf course earned $1,100. How much does a golf course charge for adults?

The golf course charge $10 for adults

Step-by-step explanation:

Let x represent the amount that the golf course charge for adults.

Let y represent the amount that the golf course charge for children.

On Saturday, 50 adults and 50 children played and Andy Golf Course earned $800.

This means that

50x + 50y = 800 - - - - - - - - - - - -1

On Sunday, 65 adults in 75 children play and the golf course earned $1,100. This means that

65x + 75y = 1100 - - - - - - - - - - 2

Multiplying equation 1 by 65 and equation 2 by 50, it becomes

3250x + 3250y = 52000

3250x + 3750y = 55000

Subtracting, it becomes

- 500y = - 3000

y = - 3000/ - 500

y = 6

Substituting y = 6 into equation 1, it becomes

50x + 50 × 6 = 800

50x + 300 = 800

50x = 800 - 300 = 500

x = 500/50

x = 10

multiplication is multiplication.   it might feel harder depending on what level of math you are in, but generally it will be the same old stuff, while implementing some new concepts and methods of solving work.