Mathematics
OpenStudy (rayman5766):

What is the value of 3 • (–8) – 2 • (–5)?

OpenStudy (phi):

do you know order of operations?

OpenStudy (rayman5766):

yea

OpenStudy (phi):

what parts should you do first ?

OpenStudy (rayman5766):

(-8)

OpenStudy (phi):

which just means -8

OpenStudy (rayman5766):

yea I know

OpenStudy (rayman5766):

help me laggon

OpenStudy (rayman5766):
OpenStudy (anonymous):

lol. just use the order of operations man. You start off with parenthesis which was -8 and -5 later. then start multiplying what needs to be multiplied. 3 * -8, then whatever that equals multiplied by -5. Then you can go ahead and subtract 2 from the product you arrived at. Its all just order of operations.

OpenStudy (rayman5766):

-31

OpenStudy (phi):

it helps to put parens around what you do first. multiply before add/subtract so do this (3 • –8) – (2 • –5)

OpenStudy (phi):

refresh your browser if that is not readable.

OpenStudy (rayman5766):

that's what I did an I got that

OpenStudy (phi):

can you show the steps?

OpenStudy (rayman5766):

well I did -8 then all of that and I did -5 then did all that

OpenStudy (phi):

can you add more info what did you get for (3 • –8) what did you get for (2 • –5) ?

OpenStudy (rayman5766):

wgot for (3 . -8) =-24 (2 .5) = -10

OpenStudy (rayman5766):

just give me the answer I dont have al day this ends in 2 minuets

OpenStudy (rayman5766):

laggon hlp me

OpenStudy (phi):

(3 . -8) - (2 .-5) -24 - -10 what is -24 - -10 notice the double minus sign

OpenStudy (rayman5766):

I got -34

OpenStudy (rayman5766):

I am also using the calculator and paper I got 24

OpenStudy (phi):

no, - -10 is + 10

OpenStudy (phi):

so -24 - -10 becomes -24 + 10

OpenStudy (rayman5766):

-14

OpenStudy (rayman5766):

is that right

OpenStudy (rayman5766):

Simplify. 10 – 5.3 • (–4 + –6) A. 63 B. 47 C. –43 D. –47

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