Which value of x makes the equation true?
x – 5 = –13
A.
–18
B.
–8
C.
8
D.
18
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OpenStudy (jollypikachu300):
@Sohal help
OpenStudy (anonymous):
B
OpenStudy (anonymous):
need explantation
OpenStudy (misty1212):
HI!!
OpenStudy (anonymous):
or add 5 to both sides and it will show x=-8
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OpenStudy (misty1212):
add \(5\) to \(-13\) to get your answer
OpenStudy (jollypikachu300):
so then -18
OpenStudy (jollypikachu300):
i subtracted
OpenStudy (anonymous):
umm no ones negative and ones positive
OpenStudy (anonymous):
you subtracted -5 from both sides??
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OpenStudy (anonymous):
yes
OpenStudy (anonymous):
no, you add 5
OpenStudy (jollypikachu300):
ima go with -8
OpenStudy (anonymous):
but 5 is all ready negative
OpenStudy (anonymous):
and yes it is B
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OpenStudy (anonymous):
Need more help?
OpenStudy (jollypikachu300):
k thx XDD
OpenStudy (anonymous):
OKay, here is the solution:
x - 5 = -13
OpenStudy (jollypikachu300):
yes
OpenStudy (anonymous):
i mean equation
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OpenStudy (anonymous):
the solution: add 5 to both sides to get x by itself
OpenStudy (jollypikachu300):
Each Sunday, Mario weighs himself. Here are his weight changes over a 4-week period.
Week 1 2 3 4
Weight Change –1.8 +0.9 –1.4 +0.4
How much has Mario's weight changed over the entire 4 weeks?
A.
1.9 pounds
B.
4.5 pounds
C.
–1.9 pounds
D.
–4.5 pounds
OpenStudy (anonymous):
I think he gets it and to check just plug it in
OpenStudy (anonymous):
you always want to get the variable by itself
OpenStudy (jollypikachu300):
yea
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OpenStudy (anonymous):
A
OpenStudy (anonymous):
need explanation
OpenStudy (jollypikachu300):
nope
OpenStudy (anonymous):
Ok next
OpenStudy (anonymous):
:)
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OpenStudy (jollypikachu300):
YASSSS I DID THIS TEST U HAVE TO HAVE 80 TO PASS I GOT 90
OpenStudy (anonymous):
wait so was this the test?
OpenStudy (anonymous):
it was a test?!?!
OpenStudy (jollypikachu300):
well no
OpenStudy (anonymous):
??
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OpenStudy (anonymous):
:O well? what do u mean by well >:(
OpenStudy (jollypikachu300):
most likely a math assiment i do k12 homeschooling in minnesota
OpenStudy (anonymous):
but u said u need get over 80 to pass...
OpenStudy (anonymous):
which refers to a test...
OpenStudy (jollypikachu300):
yes 80 to pass the assiment
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OpenStudy (jollypikachu300):
which means if i get over 80 or 80 then its mastered
OpenStudy (anonymous):
i see
OpenStudy (jollypikachu300):
yea its kinda of confusing at first
OpenStudy (anonymous):
I don't get it but as long as you never cheated Im ok