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Sholpan [36]
3 years ago
5

The Bradys and their maid, Alice, took a trip to Hawaii for their summer vacation. The travel agent told Ike that the trip would

cost $210 for each child plus another $315 per adult. According to the credit card receipt the trip cost a total of $2205 for all 9 of them. Find the number of adults and children on the trip by writing a system of equations. PLEASE EXPLAIN HOW YOU GOT THE ANSWER. I HAVE ALOT OF QUESTIONS LIKE THIS ONE SO I NEED TO KNOW HOW YOU GOT THE ANSWER. THANK YOU
Mathematics
2 answers:
ludmilkaskok [199]3 years ago
6 0
Anwser 55r34 becasue muiltplu
Sphinxa [80]3 years ago
6 0
C+a=9

c=9-a

....

210c+315a=2205, using c found above in this gives you:

210(9-a)+315a=2205

1890-210a+315a=2205

1890+105a=2205

105a=315

a=3, and since c=9-a

c=6

So 6 children and 3 adults went on the trip to Hawaii.
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