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Alex787 [66]
3 years ago
12

Summarize the order of operations for evaluating expressions. Use complete sentences.

Mathematics
1 answer:
Phantasy [73]3 years ago
6 0

<span>PEMDAS
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

First, take into account if there are any brackets (parentheses) in the equation. Any equation within a bracket </span><span>(parentheses) must be performed first.

The next step is to solve any of the powers.

Thirdly, solve any of the multiplication and division. If there is both multiplication and division, work from left to right.

Finally, solve adding and subtraction. Again, if there is both, work from left to right.</span>

Hoped I helped!

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The percent of working students increased 8.1 to 40.5 what was the present prior to increase
Dmitrij [34]

Answer:

  32.4

Step-by-step explanation:

prior + 8.1 = 40.5 . . . . . . seems to model the problem statement

prior = 32.4 . . . . . . . subtract 8.1 from both sides

Prior to the increase the percent was 32.4.

_____

<em>Comment on the problem statement</em>

When you're talking about a percentage increase in a percentage, it is almost never clear whether you're talking about the percentage of the underlying number, or the percentage of the percentage.

Here, we assume the 8.1 is a percentage of working students, not a percentage of the percentage of workings students. If you actually intend the latter, the percentage before the increase was about 37.465%.

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2 years ago
The last answer option was <br><br> 30x+475y=0
OverLord2011 [107]
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Kenneth Drew a scale drawing of an apartment the scale of the drawing was 2 meters:1 meter the living room is 6 m long in real l
atroni [7]

Answer:

3 meters

Step-by-step explanation:

Given the scale drawing :

2m : 1m

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2 meter = 1 meter

Real life = scale drawing

If length = 6 meter long ;

using cross multiplication :

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6 meter = x

2x = 6

x = 6/2

x = 3 meter

Length of living room in drawing = 3 meters

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Solve each system of equations by substitution<br> -4x+y=-5 and 2x+y=7
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Answer:

(2,3)

Step-by-step explanation:

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Answer:

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