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

Question

4 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] · Answer 1 · 2021-12-16T05:18:13+03:00

ludmilkaskok [199]4 years ago

6 0

Anwser 55r34 becasue muiltplu

Sphinxa [80] · Answer 2 · 2021-12-16T07:15:09+03:00

Sphinxa [80]4 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.