The city music hall changes 22.00 per adult and 10.00 per senior citizens one day 461 people attended a concert the total receipts this day were 6434.00 how many adult attended the concert

125 adults

Step-by-step explanation:

Let's say x represents the adults and y represents the senior citizens.

22x+10y=6434

x+y=461

Let's multiply the second equation by 10 so we can cancel a variable.

22x+10y=6434

10x+10y=4610

Subtract

12x=1824

Divide 12 from both sides and x=125

45 cm²

Step-by-step explanation:

Area of polygon = Area of square + (area of triangle)

= (side * side) + (1 / 2 * bh)

= 5*5 + (1 / 2 * 5 * 8)

= 25 + (20)

= 25 + 20

= 45 cm²