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Gwar [14]
3 years ago
11

How to solve algebraic expression using pemas(please excuse my aunt sally)

Mathematics
2 answers:
ivann1987 [24]3 years ago
7 0
Example: 3(2+4)-6

You would add 2 and 4 first, since they are in parentheses. Then you'd have:

3(6)-6

Then you would multiply 3 and 6, since multiplication comes before subtraction in PEMDAS. so then you'd end up with:

18-6

Which, 18-6=12.

Hope this is what you were asking for, and I hope this helps!! :)
cupoosta [38]3 years ago
3 0
Its actually PEMDAS you forgot the D. 
P-parentheses ()   E-exponents     M-multiplication  D-division    A-addition   S-subtraction.  <span />
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A person runs 1/8 mile in 1/64 hour.<br> The person's speed is (BLANK) miles per hour.
snow_tiger [21]

Answer: The person's speed is 8 miles per hour.

Step-by-step explanation:

To solve we want to convert the \frac{1}{8} and \frac{1}{64} proportionally for the number of miles per hour. We know that multiplying a fraction by its reciprocal will equal 1. So let's do that for the value of the hour.

\frac{1}{64}×\frac{64}{1} =\frac{64}{64} =1

Since we multiplied that to the number of hours we must also do that for the number of miles.

\frac{1}{8}×\frac{64}{1} =\frac{64}{8} =8

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1 year ago
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borishaifa [10]
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5 0
2 years ago
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makkiz [27]

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Step-by-step explanation:

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3 years ago
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Andrei [34K]

Answer:

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Step-by-step explanation:

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20=2*2*5, so it's not 20

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Step-by-step explanation:

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