Question 81636: Convert 43/6 to a mived number.
This one I'm a bit confused, b2 – 2bc + c2 if b = 3 and c = –2.
with the 2bc, do I multiply the three numbers together, or do I do each one seperate.
combine like terms.
5w + 5x – 9w- how do i figure out what goes where. I'm trying to understand if the w and x represent something or I'm supposed to complete the equation as if they werent there.
Use the indicated property to write an expression that is equivalent to the following expression.
(7 + 11) + 2 (associative property of addition)
Answer by ankor@dixie-net.com(22740)   (Show Source):
You can put this solution on YOUR website! :
Convert 43/6 to a mixed number.
Use ordinary division:
divide 6 into 43; 6 goes into 43, 7 times with a remainder of 1:
A whole number of 7 and the remainder of 1 gives a fraction of 1/6.
The mixed number: 7 & 1/6
:
This one I'm a bit confused, b2 – 2bc + c2 if b = 3 and c = –2.
with the 2bc, do I multiply the three numbers together, or do I do each one separate?
:
Assuming you want to evalutate: b^2 - 2bc + c^2 when b=3 and c=-2
You do multiply the three numbers, substitute 3 for b and -2 for c:
(3^2) - (2*3*-2) + (-2^2)
(9) - (-12) + (+4)
9 + 12 + 4 = 25; remember; a minus, a minus, is a plus
:
:
combine like terms.
5w + 5x – 9w- how do i figure out what goes where. I'm trying to understand if the w and x represent something or I'm supposed to complete the equation as if they weren't there.
:
5w + 5x - 9w is not an equation (no=sign), it's an expression
x & w do represent something, but you don't care what, you just want to
combine the variables that are the same:
Can be arranged like this:
5x + 5w - 9w
5x - 4w, we combined the two w's, that's all you can do.
:
;
Use the indicated property to write an expression that is equivalent to the following expression.
(7 + 11) + 2 (associative property of addition)
:
You know that the associative property of addition just means it does not matter in which order you add things up.
:
Therefore (7 + 11) + 2 = 7 + (11 + 2)
or 11 + (7 + 2) is OK too
:
Has this help you understand this stuff? Any questions?
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