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Mathematics 13 Online
OpenStudy (jollypikachu300):

Which value of x makes the equation true? x – 5 = –13 A. –18 B. –8 C. 8 D. 18

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

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??

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

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

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

OpenStudy (anonymous):

A

OpenStudy (anonymous):

need explanation

OpenStudy (jollypikachu300):

nope

OpenStudy (anonymous):

Ok next

OpenStudy (anonymous):

:)

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):

??

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

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

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