Try to solve this extremely hard math question I found on the practice SSAT test!!!
William has a .300 batting average (hit/times at bat). If he gets a total of 10 more hits the next 10 times he is at bat, his batting average will jump to .400. Determine how many hits he had originally.
HERE'S HOW I FIGURED IT OUT: I know that since William has hit 10 more hits out of the next 10 times he's at bat, his batting average is 0.400. Since his original batting average was 0.300, I did 18 divided by 0.300, and I got 60. Next, I did the same procedure for after he hit the 10 more... so 60+10=70, and 70 times 0.400 is 28, and 28 is 10 more than 18, so 18 is the answer!!!
If anyone can figure out the actual algebraic equation, that would be great! I think I did it the long way, and I'm sure there's a shorter algebraic equation, but I can't figure it out. kudos to whoever finds out!!! :)
Woah. That's really hard, my brain kind of hurt trying to solve that. Can we go over it in class so i would know how to solve a problem like that in the future?
Lovebug9 did a great job explaining how to solve this problem without using a lot of algebra. You can use equations but need two separate equations because you need one variable (x) for the number of hits and a second variable (y) for the number of times at bat. Then, x/y = .300 and (x+10)/(y+10) = .400. My guess is that only kb24, Jdub32, or Ron Burgendy would know how to solve it.
how did you get the font to be orange?? Also, lovebug9 you did a really good job explaining it. congrats!! the first time i tried it i got it wrong but then when you explained it and when i tried the problem using the algebraic equations. provided by mrs. burke, i understood it. Yeah can we go over it in class? it will help us on the ssat and future exams :D oh and HAPPY HALLOWEEN!!!!!!!!!!!!!!!
good luck guys!!
ReplyDeletethere isnt an answer... ? i cant figure it out!
ReplyDeleteHow can you know that if you don't know how many times he was at bat?
ReplyDeletehaha i beat you mandie :)
ReplyDelete:p I had to sign in.
ReplyDeletedont make excuses missy :P
ReplyDeleteOh. Well then. Don't accuse people! :p
ReplyDeleteI FOUND THE ANSWER!!! ITS E!!! 18!!!! I FEEL SO SMART!!! I FIGURED IT OUT!!! I SHOULD GET EXTRA CREDIT HAHA!!!
ReplyDeleteHERE'S HOW I FIGURED IT OUT:
ReplyDeleteI know that since William has hit 10 more hits out of the next 10 times he's at bat, his batting average is 0.400. Since his original batting average was 0.300, I did 18 divided by 0.300, and I got 60. Next, I did the same procedure for after he hit the 10 more... so 60+10=70, and 70 times 0.400 is 28, and 28 is 10 more than 18, so 18 is the answer!!!
If anyone can figure out the actual algebraic equation, that would be great! I think I did it the long way, and I'm sure there's a shorter algebraic equation, but I can't figure it out. kudos to whoever finds out!!! :)
lovebug9 got it right!!! congrats!!!!! i'll bring u something on monday.
ReplyDeleteWoah. That's really hard, my brain kind of hurt trying to solve that. Can we go over it in class so i would know how to solve a problem like that in the future?
ReplyDeleteYeah... and thanks miss_tan. By the way, did you get it right when you were trying to solve it?
ReplyDeleteLovebug9 did a great job explaining how to solve this problem without using a lot of algebra. You can use equations but need two separate equations because you need one variable (x) for the number of hits and a second variable (y) for the number of times at bat. Then, x/y = .300 and (x+10)/(y+10) = .400. My guess is that only kb24, Jdub32, or Ron Burgendy would know how to solve it.
ReplyDeletehow did you get the font to be orange?? Also, lovebug9 you did a really good job explaining it. congrats!! the first time i tried it i got it wrong but then when you explained it and when i tried the problem using the algebraic equations. provided by mrs. burke, i understood it. Yeah can we go over it in class? it will help us on the ssat and future exams :D oh and HAPPY HALLOWEEN!!!!!!!!!!!!!!!
ReplyDeleteoh and the "how did you get the font to be orange" question is for miss_tan
ReplyDeleteit's the title.. when you make a post there is a box in the top that says Title: ______________
ReplyDeletehow many times was he up to bat???
ReplyDeleteIs the answer 18??
ReplyDeleteAre we allowed to post now?
Yes, the answer is 18. and I think we should check with Mrs. Burke before posting more!!! :)
ReplyDelete