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Biology 15 Online
AquarytheALPHA:

Which is the first step in evaluating the expression 7 + 10 - 7 x 4 ÷ 5 x 9? 5 x 9 7 + 10 10 - 7 7 x 4

bigboybilly:

PEMDAS

badgirlhope:

So I use PEMDAS which is Parenthesis Exponents Multply Divide Add Subtract

bigboybilly:

PARENTHESES EXPONENTS MULTIPLY DIVIDE ADD SUBTRACT

AquarytheALPHA:

I know im confused

badgirlhope:

So In this case there are no parentheses so we go to exponents and there are no exponents so you would do multiply first

AquarytheALPHA:

oh ok

badgirlhope:

So what the answer choice that has multiplication

AquarytheALPHA:

but there is two

bigboybilly:

yes so which one comes first in the equation

badgirlhope:

but which one goes first left to right so it would be 7 x 4

AquarytheALPHA:

oh ok thank you

bigboybilly:

correct @badgirlhope

badgirlhope:

your welcome

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