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Mathematics 8 Online
OpenStudy (anonymous):

I WILL GIVE MEDAL AND FAN The product of 9 and a number is 12 less than three times that number. What is the number?

OpenStudy (anonymous):

Ok do you have any clue?

OpenStudy (anonymous):

On what your answer is

OpenStudy (anonymous):

no

OpenStudy (anonymous):

Ok so first is says "The product of 9 and a number" It doesn't give us the other number so we are just going to label that as X

OpenStudy (anonymous):

ok so nbr

OpenStudy (anonymous):

not being rude

OpenStudy (anonymous):

Now our product is 12 less then 3, so we do 3-12 with is -9 So we have to find out what X is, what number can get us to -9? We need to subtract something to get out answer, -9

OpenStudy (anonymous):

*which is

OpenStudy (anonymous):

idk i am not very good at this

OpenStudy (anonymous):

Ok, so when you subtract a smaller number from a larger number, your probably going to get a negative number.

OpenStudy (anonymous):

So use a calculator to try out these number: 9-10 9-16 and 9-18

OpenStudy (anonymous):

Which one is going to be equal to -9?

OpenStudy (anonymous):

9

OpenStudy (anonymous):

MMM not correct, 9-9 Is 0 but we need to get to -9

OpenStudy (anonymous):

Here we need 9 - x to get -9, count the numbers between 9 and -9

OpenStudy (anonymous):

U can use a number line for best resluts ;)

OpenStudy (anonymous):

*results

OpenStudy (anonymous):

18 between the to numbers

OpenStudy (anonymous):

So do 9-18

OpenStudy (anonymous):

What do we get?

OpenStudy (anonymous):

-9

OpenStudy (anonymous):

Correct! That means X = 18 Now we have 9 - 18 = -9

OpenStudy (anonymous):

Does that help any?

OpenStudy (anonymous):

Was it correct? If so Medal? If its not to much to ask ^.^

OpenStudy (anonymous):

Blehh its been 10 minutes, with no response, or medal and fan like you promised......

OpenStudy (phi):

you should try to "translate" the words into "math" The product of 9 and a number product means *multiply* so 9 times a number give the unknown number a name: people use x (for unknown) so 9 times x in algebra, we just write it 9x

OpenStudy (phi):

9x is 12 less than three times that number. the "is" translates to an equal sign 9x = 12 less than three times that number first look at the "three times that number" any idea how to translate this part ?

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