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Alona [7]
3 years ago
9

What is PEMDAS and why do we use it

Mathematics
2 answers:
Vlad [161]3 years ago
7 0
"Please Excuse My Dear Aunt Sally<span>". It stands for "Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction".
</span><span> we follow PEDMAS simply because that's the accepted convention, but we have the convention because it fits common cases well and makes mathematical expressions easier to read. 
</span>
I don't know exactly what answer you're looking for but that's what I got. This shouldn't have been hard to pick up on in class lol.
Ierofanga [76]3 years ago
3 0
What is PEMDAS you ask right?well PEMDAS is a thing you use to solve equations with either parentesis,exponets,when adding,subtracting,multiplying,and dividing.for example, (4+9)20÷5.the first thing that you'll do is what is in the parentesis.4+9=13.then,20÷5=4.finally since there isnt a sign on what to do with 13 &4 you just multiply.4×13=52.we use PEMDAS so it can add order when solving a problem like the example.
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lora16 [44]

Answer:

Current debt of Andrea = $7,150

Step-by-step explanation:

Given:

Loan taken by Andrea from bank = $25,850

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Current debt of Andrea

Computation:

⇒ Current debt of Andrea = Loan taken by Andrea from bank - Amount paid by Andrea to bank

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Note: O information provide about interest.

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Parker signed up for a streaming music service that costs $6 per month. The service
TEA [102]

Answer:

Parker will have to pay $31 in a month in which he downloaded 50 songs.

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Step-by-step explanation:

Cost per month = $6

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A. How much total money would

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Total amount Parker will pay = $6 + $0.50(50)

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B. How much would

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7 0
3 years ago
In a certain Algebra 2 class of 30 students, 19 of them play basketball and 12 of them play baseball. There are 8 students who p
Alenkinab [10]

Answer:

Probability that a student chosen randomly from the class plays basketball or baseball is  \frac{23}{30} or 0.76

Step-by-step explanation:

Given:

Total number of students in the class = 30

Number of students who plays basket ball = 19

Number of students who plays base ball = 12

Number of students who plays base both the games = 8

To find:

Probability that a student chosen randomly from the class plays basketball or baseball=?

Solution:

P(A \cup B)=P(A)+P(B)-P(A \cap B)---------------(1)

where

P(A) = Probability of choosing  a student playing basket ball

P(B) =  Probability of choosing  a student playing base ball

P(A \cap B) =  Probability of choosing  a student playing both the games

<u>Finding  P(A)</u>

P(A) = \frac{\text { Number of students playing basket ball }}{\text{Total number of students}}

P(A) = \frac{19}{30}--------------------------(2)

<u>Finding  P(B)</u>

P(B) = \frac{\text { Number of students playing baseball }}{\text{Total number of students}}

P(B) = \frac{12}{30}---------------------------(3)

<u>Finding P(A \cap B)</u>

P(A) = \frac{\text { Number of students playing both games }}{\text{Total number of students}}

P(A) = \frac{8}{30}-----------------------------(4)

Now substituting (2), (3) , (4) in (1), we get

P(A \cup B)= \frac{19}{30} + \frac{12}{30} -\frac{8}{30}

P(A \cup B)= \frac{31}{30} -\frac{8}{30}

P(A \cup B)= \frac{23}{30}

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3 years ago
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Liula [17]
Aya’s time + 16 seconds
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8 0
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