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Mathematics 19 Online
OpenStudy (anonymous):

What is the value of the expression 87 – 8t + t3 – 23 when t = 3?

OpenStudy (anonymous):

49

OpenStudy (anonymous):

67

OpenStudy (anonymous):

you plug in 3 for whenever there is a t so 87-24 is 63, 63+9 is 72, 72-23 is 49, so 49 is the answer

OpenStudy (anonymous):

wait but wouldnt you have to do order of operation first?

OpenStudy (anonymous):

87 – 8*3 + 3*3 – 23 87-24+9-23 63+9-23 72-23 49

OpenStudy (anonymous):

@DinaGotIt

OpenStudy (anonymous):

oh okay..

OpenStudy (anonymous):

no not in this case, due to there not being any exponents or division, you plug in and solve

OpenStudy (anonymous):

Dina you were right you must use order of operations thats what ferguson forgot

OpenStudy (anonymous):

no you always use order of operations because you have to multiply @fergusonb7

OpenStudy (anonymous):

but @fergusonb7 there are exponents

OpenStudy (anonymous):

no you plug in the 3 where the X is and solve, you don't need to use the order of operations @stupid12 , afterall you did get 67 first, and there are not, you gave an equation, if there were exponents you would of put t^3 which would equal 9 but 8^3 with be 512. @DinaGotIt

OpenStudy (anonymous):

ur wrong whenever youre doing algebra you have to do order of operations

OpenStudy (anonymous):

yea thats true didnt you see that exponent?

OpenStudy (anonymous):

I'm not going to sit here and argue with you, I didn't use order of operations because it is not needed, AT ALL, and considering who got the correct answer first should determine whose right and whose wrong, but maybe your right about in algebra, because I am in AP AB Calc @stupid12 and if there are exponents then you answer would be -439, so I believe that there is not any exponents

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