1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alona [7]
2 years ago
9

What is PEMDAS and why do we use it

Mathematics
2 answers:
Vlad [161]2 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]2 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.
You might be interested in
A motorboat can maintain a constant speed of 44 miles per hour relative to the water. The boat makes a trip upstream to a certai
serg [7]

Answer:

Step-by-step explanation:

Distance upstream = (34-c)(39/60) miles

--------------------------

Distance downstream = (34+c)(29/60) miles

-----------------------------------------------

Equation:

distance = rate*time

distance up = distance down

(34-c)(39/60) = (34+c)(29/60)

Multiply both sides by 60 to get:

39(34-c) = 29(34+c)

39*34 - 39c = 29*34 + 29c

68c = 340

c = 5 mph speed of the current

4 0
3 years ago
Jerry is saving his money. He started with $15.00. If he adds $10.00 to his savings
posledela

Answer:

$40

Step-by-step explanation:

use y = mx + b  

y = amount saved = ?

m = amount saved per week = $10

x = time (in  months) saving = 2.5

b = money jerry started with = $15

plug in:

y = (10)(2.5)+15

y = $40

6 0
2 years ago
A scale model of a bus is 12 inches long<br> . How many inches long is the bus it represents
lions [1.4K]

Answer: 304.8 milimeter

Step-by-step explanation:

7 0
2 years ago
Symbol for taken away
daser333 [38]

Hi there!


In math terms, when we think of the words "Taken away", we immediately think of subtraction/subtracting. So, the symbol that you're looking for looks sort of like a dash.


- is what it looks like.


Hope this helps!

Message me if you need anything else! I'd be happy to help you! :D

6 0
2 years ago
Read 2 more answers
Please, I need help with this!! :(
hram777 [196]
PQS = 40 because if you look at the image above it half equals 20 and 20+20=40
4 0
3 years ago
Other questions:
  • What's the eleventh term of a sequence with an explicit rule of ƒ(n) = 2 + 3(n – 1)?
    11·1 answer
  • CONSUMER MATH HELP!!!
    11·2 answers
  • The mean of the following Data Set 5, 9, 3, 13, 5
    6·2 answers
  • In the equation W=8s+2b explain why the varable s has coefficient of 8 and the variable b a coefficient of 2
    13·1 answer
  • A coin sorter separates a mixture of pennies, nickels, dimes, and quarters according to which physical property?
    12·1 answer
  • A right triangle has an angle with a sine of 0.6. What is the cosine of the angle?
    12·1 answer
  • I don’t understand it.
    10·1 answer
  • Find the simple interest paid to the nearest cent for each principal, interest
    13·1 answer
  • Mary is painting pumpkins to earn money. She plans on selling each pumpkin for $7.50. She currently has $200 in her savings acco
    9·1 answer
  • 5
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!