Question

There were 150 people at the Junior-Senior dance Sasha and her friends attended. Junior tickets were $2.00 each and Senior tickets were $3.50 each. The total receipts for the dance were $405. How many Juniors bought tickets?

Answer 1

o easy u set up two equations for this one.

Answer 2

u wanna know how?

Answer 3

yes please

Answer 4

ok so for the first equation ur going to set it up as
j+s=150
which is j=juniors, s=seniors and 150 is equal to the total # of ppl that attended.

ok, so the next equation would be
2j+3.50s=450
which again juniors , seniors and 450 is the total receipt for the dance..... get it so far?

Answer 5

yes

Answer 6

ok good!
do u know how to cancel out variables?

Answer 7

yep

Answer 8

okay so then u would simply cancel out juniors and solve for s/seniors! :)

Answer 9

2(150-s)+3.50s=450 so that will be the problem?

Answer 10

let me see........

Answer 11

it this what u got after getting rid of j?

Answer 12

well yea.. didnt you get that?

Answer 13

ahhhhhhh no welll.....
when i canceled out the j u got....

well ok this is before so,



i had
-2j-2s=-300
and
2j+3.50s=450
then i canceled the j and i got 1.5s=150

Answer 14

so whats the answer?

Answer 15

100?

Answer 16

yeah u got it! :) good job!!!!!!!!!

Answer 17

thank you :)

Answer 18

no problem. :)