All you have to do is multiply the 80 adults by the cost of an adult tickets wich is 80 x 8=640 and then calculate the cost of children's tickets which is 20 x 20=400 then add 400 to 640 400+640 = 1040 then subtract the amount the school donated from that which is 1040-125= 915 and 915 is your answer
hope this helps! :)
Answer: 1:8 , 15:120
2:3, 40:60
Step-by-step explanation: 1:8= 15:80
80/15=8, so it is equal to 1:8.
40:60
40/60=2/3
5.2+4.8= 10
So it has to be 20 I think
Answer:
2
Step-by-step explanation:
∵a+1,2a+1,4a-1 are in A.P.
2(2a+1)=a+1+4a-1
4a+2=5a
5a-4a=2
a=2