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Masteriza [31]
3 years ago
5

How do I know when to multiply divide subtract or add

Mathematics
2 answers:
BabaBlast [244]3 years ago
7 0
Ummm if I understand the question there will be symbols.

Addition is +
Subtraction is -
Multiplication is * or x
Division is /

If you have an expression use PEMDAS like ChrisR described.
Pani-rosa [81]3 years ago
4 0
PEMDAS is very helpful to remember when thinking of order of operations. Parentheses, Exponents, Multiply, Divide, Add, then Subtract. Always in that order. 

If you are talking about something more specific you may want to give a bit more information.
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A ship has a circular
alisha [4.7K]

Answer: If this isnt wrong then I probably forgot how to do this... You plug in 10 with \pi10^2. so then you'll get 100 time pi and youll get 314.159265.

4 0
2 years ago
Which of the following represents 8​
aniked [119]

Hello!

your answer is: A. 8

the other answers contain equations that do not result in 8

B is equal to 36

C is equal to 40,320

I hope this helps, and have a nice day!

4 0
3 years ago
Read 2 more answers
The sum of the lengths of any two sides of a triangle must be greater than the third side. If a triangle has one side that is 18
kogti [31]

Answer: One side could be 18 and the other side will be 33.

Step-by-step explanation:

  • Side #1 = 18
  • Side #2 = 2x - 3
  • Side #3 = x

<u>One way of setting up the inequality is: Side #2 + Side #3 > Side #1</u>

<u />2x-3+x>18\\3x-3>18\\3x>18+3\\3x>21\\x>7

<u>Another way of setting up the inequality is: Side #1 + Side #3 > Side #2</u>

<u />18+x>2x-3\\18+3>2x-x\\x<u />

<u>Final way of setting up the inequality is: Side #1 + Side #2 > Side #3</u>

<u />18+2x-3>x\\15>x-2x\\15>-x\\x>-15<em />

<em>Therefore, we have the range for our value of x, which is between 7 and 21. Any possible value between works. Negative measurements are rejected. One of the sides would equal the x-value, while the other side would equal the value of 2x-3.</em>

3 0
3 years ago
What does W equal? <br> -22-3w-5w=0
DerKrebs [107]

In the International System of Units (SI), the unit of power is the watt (W), which is equal to one joule per second.

SI unit: watt (W)

In SI base units: kg⋅m2⋅s−3

3 0
3 years ago
Find the solution for this system of equations.
Alexxx [7]
<span>A) 12x + 15y = 34
</span><span>
</span><span>B) -6x + 5y = 3  Multiplying B) by -3
</span>
B) 18x -15y = -9  Then adding this to A) equals
30x = 25
x = <span> <span> <span> 0.8333333333...
</span></span></span>
<span>A) 12x + 15y = 34
</span>
12 * <span> <span> <span> 0.8333333333... + 15y = 34
</span></span></span><span><span><span>
</span></span></span><span><span><span /></span></span>10 + 15y = 34
15y = 24
y = 1.6

<span><span> </span> </span>





4 0
3 years ago
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