The Purplemath Forums

hiii, i have a question about this question i always mess up on. i think i got it but im not sure. i went back to look at problems a got wrong a while ago, and this is one of them. here it is: if three times jills bowling score is increased by 100 less than twice her score, the result is 900. find ...

alright. thanks both of you:]]

let x= jills score
3x+2x-100=900
5x-100=900
5x=1000
x=200


CHECK(hehe,i forgot this step):
3(200)+2(200)-100=900
600+400-100=900



i got it!
thanks for your help!

i absoulutly haatteee rates. there so annoying. i love propotions, such as: a boy was standing by a flagpole. he is 4ft 11 in. his shadow was 5ft 6 in. the flagpole was 8ft tall. how big was the flagpoles shadow. i also love missing piece problems, such as: there are three brothers. there names are ...

semester quiz tomorrow, any suggestions? the 8th grade is being compared to the high school. im so nervous. any suggestions as to what to do? i get reaaaallllllyyyy nervous when it comes to tests and quizzes. its timed, and its my first timed test.

A 8m board is cut into two pieces. One piece is 2m longer than the other. How long are the pieces?


how would you solve?

alright. thank you for your help and suggestions. ithink i did pretty well. ohh well.thaaaanxxx

ohkay. i think i understand it. thaannxxx

what is the heartbeat looking thing on a graph? it means up to that number. like at the origin, before the first number, there is a zigzag line that looks like something on a heart monitor.
help appreciated.