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Mathematics 19 Online
OpenStudy (anonymous):

Simplify. –2 • (4) – 3 • (–5) = A. 55 B. 7 C. –23 D. –120

OpenStudy (anonymous):

use the order of operations

OpenStudy (black_ninja123):

Pemdas Parenthesis Exponents Multiply Divide Add Subtract

OpenStudy (anonymous):

i gotta go can u do it ninja?

OpenStudy (black_ninja123):

Sure

OpenStudy (black_ninja123):

@shotgun Do you understand what are you suppose to do?

OpenStudy (anonymous):

no

OpenStudy (anonymous):

im trying

OpenStudy (black_ninja123):

What do you think is the first step?

OpenStudy (black_ninja123):

Do 4*(-2) first Do 3*(-5) Second

OpenStudy (anonymous):

first 8?

OpenStudy (black_ninja123):

-8 because 4*(-2) is -8

OpenStudy (black_ninja123):

Now what is -5*3

OpenStudy (anonymous):

(-5) = 5 correct?

OpenStudy (black_ninja123):

-5 * 3 will equal a negative

OpenStudy (black_ninja123):

-8 - -15 =?

OpenStudy (anonymous):

-23?

OpenStudy (black_ninja123):

No (-8) - (-15) = 7

OpenStudy (anonymous):

oh sorry im bad with math

OpenStudy (black_ninja123):

It fine, and i'm bad at explaining

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