Order of Operations:
PEMDAS
P: Parenthesis
E: Exponents
MD: Multiplication/Division
AS: Addition/Subtraction
Remember to do them in order.
E.G: 8(2+3)²-4/2
You do first the parenthesis(2+3), which is 6
Multiply 6 by 6(rule of exponents), which is 36.
Multiply 36 by 8, which is 288.
Divide 288 by 2, which is 144.
Subtract 144-2. It is 142.
Answer: 142
Answer:
The answer is A. 145
Step-by-step explanation:
Hope this helped : )
Answer:
66 i think
Step-by-step explanation:
base x height equals 6x11=66
Answer:
Step-by-step explanation:
In order to solve this problem, let's first understand what the question is asking.
If we combine Solution A (with 35% salt) and Solution B (with 85% salt), our goal is to create a 40 ounce mixture with 45% salt.
Let's model an equation for this, assuming that a is the amount of ounces of Solution A and b is the amount of ounces of Solution B.
<em>Why?</em> Since 35% of a number is the same as multiplying it by 0.35, we can multiple the total number of ounces by the decimal to find how many ounces of it will contain salt.
We also know that we need 40 ounces of this mixture. Therefore, adding together Solution A and B must get 40:
We can now solve this systems of equations.
Now that we know Solution B needs 8 ounces of mixture, we can substitute it into an equation to solve for a.
Therefore, we need 32 ounces of Solution A and 8 ounces of Solution B.
Hope this helped!
Jack's weight if together they weigh 225 pounds will be 158(¹/₃).
<h3>
What is an expression?</h3>
Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
Given that Jack's weight is 25 pounds more than twice Sally's weight and the total weight is 225 pounds.
Create an equation. J = JACK and S = SALLY
2s+25 = Jack
Jack + Sally = 225
2s+25+s = 225
3s+25 = 225
3s = 200
s = 66(²/₃)
66(²/₃) x 2 = 133( ¹/₃)
133( ¹/₃) + 25 = 158( ¹/₃)
Therefore, Jack's weight if together they weigh 225 pounds will be 158(¹/₃).
To know more about an expression follow
brainly.com/question/1627455
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