Question

MEDAL AND FAN FOR ANSWER !! PLEASE HELP !!
Admission to the zoo is $6 for children and $9 for adults. On a certain day, 1480 people go to the zoo and $10,500 is collected.

How many children and how many adults went to the zoo?
children:
adults:

Answer 1

6c + 9a = 10,500
c + a = 1480
c = 1480 - a
6(1480 - a) + 9a = 10,500
8880 - 6a + 9a = 10,500
8880 +3a = 10,500
3a = 1620
a = 540
6c + 9(540) = 10,500
6c + 4860 = 10,500
6c = 5640
c = 940

Children: 940
Adults: 540

Answer 2

what about this one ?
A collection of quarters and nickels is worth $13.70. There are 106 coins in all.

How many of each coin are there?
Quarters:
nickels: @KamiBug

Answer 3

0.25q + 0.05n = 13.70
q + n = 106
q = 106 - n
0.25(106 - n) + 0.05n = 13.70
Solve this equation ^ for the number of nickels, then substitute in the number you get to the first equation at the top for "n" and solve for "q" the number of quarters.:) Got it from here? I gotta go, sorry.

Answer 4

can I please have the answer real fast ?