Mathematics
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OpenStudy (anonymous):
am i correct @ivettef365
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OpenStudy (anonymous):
OpenStudy (ivettef365):
you subtracted the variables, but both are negative so you need to add and keep the negative sign
OpenStudy (anonymous):
ok thanks
OpenStudy (anonymous):
11.6+-6x?
OpenStudy (ivettef365):
you need to add -3.2 x + (-9.2x)
so what is 3.2 + 9.2 = ??
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OpenStudy (anonymous):
12.4
OpenStudy (jhannybean):
\[\large 2.2 - 3.2x +9.4 -9.2x \]\[\large (2.2 + 9.4) -( 3.2x + 9.2x)\]
OpenStudy (ivettef365):
correct, and keep the negative sign, so it would be
-12.4x + 11.6
OpenStudy (anonymous):
@ivettef365 is this correct
OpenStudy (ivettef365):
first combine like terms, so you have 5.7m - 34 = 1.4m -21.1
so keep variables on one side and integers on the other as follows:
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OpenStudy (ivettef365):
5.7m - 1.4m = -21.1 + 34
the numbers that I switch, needs to have the sign change, do you see it
OpenStudy (anonymous):
the first one?
OpenStudy (anonymous):
i have to hurry im timed
OpenStudy (ivettef365):
I'm not supposed to give you the answer, I could just help you solve the problem, now can you do the subtractions
OpenStudy (anonymous):
i know you cant
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OpenStudy (anonymous):
4.3?
OpenStudy (ivettef365):
ok, good
so you have
4.3m = -21.1 + 34
now do the other subtraction
OpenStudy (anonymous):
12.9
OpenStudy (ivettef365):
good, so you have
4.3m = -12.9
OpenStudy (anonymous):
3
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OpenStudy (anonymous):
?
OpenStudy (ivettef365):
correct it is 3
OpenStudy (anonymous):
is this correct
OpenStudy (anonymous):
?
OpenStudy (ivettef365):
it is incorrect, should be 2.8
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OpenStudy (anonymous):
and this?
OpenStudy (ivettef365):
you divide it, but you are missing an 8, should be 415.58
OpenStudy (anonymous):
thank you sooooo much
OpenStudy (ivettef365):
yw :)