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Mathematics 8 Online
OpenStudy (anonymous):

Help!!!!!!!!!!!!!!!!!!

OpenStudy (anonymous):

Find the value of x 6(x+ 5)=4(2x+1

OpenStudy (anonymous):

What is the value of x(9-y) If x=4 and y=6

OpenStudy (aroub):

for the first one x= 13

OpenStudy (aroub):

for the second just substitute the 4 by x and the 6 by and the find the answer

OpenStudy (anonymous):

Neil scored 97 75 89 and 91 on 4 math test. What score will he need to make on the third test to make a mean of 90?

OpenStudy (aroub):

sorry ive never been good at word problems even the easy ones! sorryy! :(

OpenStudy (anonymous):

awwwwww And how do u substiute?

hero (hero):

What? none of these are word problems.

OpenStudy (anonymous):

Help on this one. Neil scored 97 75 89 and 91 on 4 math test. What score will he need to make on the third test to make a mean of 90?

OpenStudy (anonymous):

(97+75+89+91+x)/5=90 solve for x aroub

hero (hero):

Yeah, jahtoday got it

hero (hero):

I would expect x to be greater than 100

OpenStudy (aroub):

ok this ur question x(9-y) If x=4 and y=6 u just substitute the 4 by x and the y by 6 like 4(9-6)=12

OpenStudy (anonymous):

Thanks.

hero (hero):

actually, jahtoday, you forgot 4

hero (hero):

so it is (97+75+89+91+4 + x)/6=90

OpenStudy (anonymous):

Ya so the answer is......

hero (hero):

You didn't have to post it again

OpenStudy (anonymous):

o kk

hero (hero):

He would have to score a 184 which is impossible

OpenStudy (anonymous):

What is the answer?

OpenStudy (anonymous):

wait the question ddnt make sense. u gave 4 math test results n then ask what should he get on the 3rd 1. that doesnt make sense cuz he is at least on the 5th 1

OpenStudy (anonymous):

No neil score 97 75 89 and 91 on 4 math test. He want a mean of 90 so what does he need to score on the 5th test to make the mean a 90.

OpenStudy (anonymous):

That is the problem.

hero (hero):

Oh, I see

OpenStudy (anonymous):

a 98

OpenStudy (anonymous):

o kk . Thanks.

hero (hero):

I thought he scored a 4 on the 5th math test

OpenStudy (anonymous):

HAHA that is funny! :)

hero (hero):

Yeah, something about it didn't make sense. I should have read the question more carefully.

OpenStudy (anonymous):

Yes u should.

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