Explain what pemdas means

Answers

Answer 1
Answer: It is the saying to remember the order of operations, P(parenthesis) E(exponent) M(multiplication) D(division) A(addition) S(subtraction)
Answer 2
Answer:

Answer:

P  E  M  D  A  S:

(Parenthesees)

(Exponents)

(Multilpacation)

(Division)

(Addition)

(Subtraction)

This is what pemdas means, it is a quick way to rememeber what order to solve order of operations like for example: (9 x 7) + 3 - 4. Pemdas can also mean... Please excuse my dear Aunt Sally.


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Caroline bought 20 shares of stock at 101/2, and after 10 months the value of the stocks was 111/4. If Caroline were to sell all her shares of this stock, how much profit would she make? A. $15 B. $10 C. $225 D. $210

Answers

Answer:

 Option A is correct that is $15.

Step-by-step explanation:

Caroline bought 20 shares of stock at 10(1)/(2)=(21)/(2), and after 10 months the value of the stocks was 11(1)/(4)=(45)/(4).

We need to calculate the profit which is the difference of the two values of the stock.

(45)/(4)-(21)/(2)

(3)/(4)

The above value is for 1 share we have to calculate it for 20 shares

So, we will multiply it with 20 we get:

(3)/(4)\cdot 20=15

Therefore, Option A is correct that is $15.

First,
101.2=10.50
111/4=11.25
Second, we minus our old by the new.
11.25-10.50=0.75
Then, we times the by stock;answer is below.
0.75 * 20 = 15

What is the solution to the system of equations?4x + y = 2
x - y = 3


( ______ , ______ )

Answers

4x + y = 2
x - y = 3       ⇒       x = 3 + y

4 (3+ y) + y = 2
12  + 4y + y = 2
12 + 5y = 2
5y = 2- 12
5y = -10
y = -10/ 5
y = -2

x = 3 + y   ⇒ 3 + (-2)      ⇒   3 - 2  = 1

(1, -2)

The quotient of three and the quantity of three less than one-sixth of a number x?

Answers

(3)/((x)/(6)-3)=(3)/((x-18)/(6))=3*(6)/(x-18)=(18)/(x-18)
Good, right?

(b-1)2+2a; use a=6, and b=1

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um i’m gonna go with 14 bc (1-1) is 0 and then 2+2(6) is 14. i could be wrong sorry

How do you solve (2z-3)(4z-7)=0

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The key to this is to realize that if EITHER quantity in parentheses is zero,
then the whole left side is zero, and the equation is true.

First quantity:  (2z-3).  If this is zero, then the whole equation is true.

                                     2z - 3 = 0
Add 3 to each side:      2z       = 3
Divide each side by 2:    z      = 3/2  or  1.5

Second quantity:  (4z-7).  If this is zero, then the whole equation is true.

                                     4z - 7  =  0
Add 7 to each side:      4z        =  7
Divide each side by 4:   z         =  7/4  or  1.75

So the original equation has two solutions:

             z = 1.5
and
             z = 1.75 .

There are two values of z in this question.  (2z - 3)
-3 / 2 = -1.5
-1.5 x -1 = 1.5

(4z - 7)
-7 / 4 = -1.75
-1.75 x -1 = 1.75

z = 1.5 or 1.75

Write an expression to represent: The sum of one and the product of one and a number x

Answers

1X+1 is the answer. Hope this helped