Question

help plz ;-;
The table below shows the ticket rates for whale watching trips offered by Beluga Fun Tours.

Age Ticket Price
Under three years free
Three to twelve years $34
Over twelve years $45

On a certain day, the company took 103 people on whale watching trips. There were 64 children aged twelve and under, of which some children were under three years. If x represents the number of children under three years, which equation can be used to find the value of x, where C represents the total amount of money collected from tickets that day?
a. (64 - x)34 + (103 - 64) • 45 = C
b. (103 + x)34 + (103 -(64 + x)) • 45 = C
c. (103 - x)34 + (103 - 64) • 45 = C
d. (64 + x)34 + (103 -(64 + x)) • 45 = C

Answer 1

@mathessentials can u help me ;-;?

Answer 2

Over twelve years:
103 - 64 children of all ages

right?

Answer 3

mhh yes O.O

Answer 4

whats the price for them

Answer 5

$34

Answer 6

Over twelve years $45

Answer 7

ohh o.o

Answer 8

nevermind. stupid question but now we know it hehe

Answer 9

haha xD

Answer 10

under three years are free.

basically if we already know the amount of $45 adults,
and we know the total people on the ship.

you know, the only rest from C is the children combined
so rest of C, and rest of children (64)
must give us: a C that is no more than cost children

Answer 11

anyways. what do we have so far?

total cost = adultcost +all kidscost

Answer 12

do we already know the adult cost ?

Answer 13

$?/1,695

Answer 14

total passengers 104, 64 children of all ages
so: 104-64 are the adults

Answer 15

right?

Answer 16

yea

Answer 17

C=(103-64)*45 +
adults cost $45

Answer 18

this is what we have so far, do you understand it?

Answer 19

yes :D

Answer 20

great ;)

what is still missing is the kids and their costs.

Answer 21

so babies are essentially free.

Answer 22

we have 64 children of all ages, but some of them could be babies.
who knows.

Answer 23

what we do know is that only 3+ does cost any money ($34)

Answer 24

if the 64 children are comprised of "babies=x" and "3+",
only the 3+ will cost money

Answer 25

how should we write it ?

total children: 64
babies: x
cost for 3+: $34

Answer 26

(64-x)34?

Answer 27

YES

Answer 28

:D

Answer 29

babies are free, they don't multiply with the cost

Answer 30

putting everything together:

C=(103-64)*45 + (64-x)34

Answer 31

so A : D

Answer 32

this was kinda confusing problem o-o

Answer 33

the first part has every traveler and gets rid of all children, so only adults are left ($45 each)
the second part has all children and gets rid of all babies, so only 3+ are left ($34 each)

yeah the answer is A) ;)

Answer 34

I agree

Answer 35

thanks for the help ! : ))!!