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9/12 smlified My math homework tells me that 9/12 needs to be simplified, but I tried to do it 29 times and I still can't get it!

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  • May 11, 2010

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TRY 3 OVER 4 IE 3 QUARTERS

Posted on Jan 20, 2009

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Posted on Jan 02, 2017

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1 Answer

Solve: 7(3x+5) = 8x - (1-4x)?


Let's rewrite as

7(3x+5) = 8x -1(1-4x)
Let's distribute
21x + 35 = 8x -1 + 4x
collect like terms
21x + 35 = 12x -1
Put all the x's on one side by subtracting 12x from both sides
21x -12x + 35 = 12x -1 -12x
simplify
9x + 35 = -1
get all the constants on the right side
9x + 35 - 35 = -1 - 35
9x = -36
divide both sides by 9 to get x by itself
9x /9 = -36/9
x = -4

check in original equation

7(3(-4)+5) = 8(-4) -(1-4(-4))
7(-12+5) = -32 - (1+16)
7 (-7) = -32 - (17)
-49 = -32-17
-49 = -49

Jan 04, 2017 | Homework

1 Answer

My classes


Then you'd better get to it.

We can't help with your homework when you don't even bother to tell us whether it's your history homework, your math homework, or what.

May 28, 2014 | Computers & Internet

1 Answer

Maths equation


(-9/3)x=-2
First simplify -9/3 to -3 : -3x=-2
Divide by -3.
x=-2/-3=2/3

Oct 24, 2013 | Office Equipment & Supplies

1 Answer

Give some example of math equation?


The following are examples of expressions:
2
x
3 + 7
2 × y + 5
2 + 6 × (4 - 2)
z + 3 × (8 - z)
Example:
Roland weighs 70 kilograms, and Mark weighs k kilograms. Write an expression for their combined weight. The combined weight in kilograms of these two people is the sum of their weights, which is 70 + k.
Example:
A car travels down the freeway at 55 kilometers per hour. Write an expression for the distance the car will have traveled after h hours. Distance equals rate times time, so the distance traveled is equal to 55 × h..
Example:
There are 2000 liters of water in a swimming pool. Water is filling the pool at the rate of 100 liters per minute. Write an expression for the amount of water, in liters, in the swimming pool after m minutes. The amount of water added to the pool after m minutes will be 100 liters per minute times m, or 100 × m. Since we started with 2000 liters of water in the pool, we add this to the amount of water added to the pool to get the expression 100 × m + 2000.
To evaluate an expression at some number means we replace a variable in an expression with the number, and simplify the expression.
Example:
Evaluate the expression 4 × z + 12 when z = 15.
We replace each occurrence of z with the number 15, and simplify using the usual rules: parentheses first, then exponents, multiplication and division, then addition and subtraction.
4 × z + 12 becomes
4 × 15 + 12 =
60 + 12 =
72
Example:
Evaluate the expression (1 + z) × 2 + 12 ÷ 3 - z when z = 4.
We replace each occurrence of z with the number 4, and simplify using the usual rules: parentheses first, then exponents, multiplication and division, then addition and subtraction.
(1 + z) × 2 + 12 ÷ 3 - z becomes
(1 + 4) × 2 + 12 ÷ 3 - 4 =
5 × 2 + 12 ÷ 3 - 4 =
10 + 4 - 4 =
10.

hope that help you

Jun 22, 2011 | LeapFrog Turbo Twist Math Cartridge 5th...

1 Answer

What is the simplest form for 61 over 82


61 ?
2 times 30 leaves a remainder of 1.
3 times 20 leaves a remainder of 1.
5 times 12 leaves a remainder of 1.
7 times 8 leaves a remainder of 5.
8 times 7 leaves the same remainder.

So, the numerator is a PRIME number, that cannot be "simplified".

May 14, 2011 | The Learning Company Achieve! Math &...

3 Answers

How do I on a TI-84 Plus Simplify Fractions


Enter the fraction for example: enter 8/12.
The answer will be .666666
Then click Math (which is located under the Alpha button).
Click the ->Frac button (the first one).
It should come up as Ans->Frac.
Click Enter.
It should now read 2/3 which is 8/12 reduced.
Note: I have a TI-84 Plus Silver Edition, and the TI-84 Plus might not have this function, but that is how I do it on my TI-84 Plus Silver Edition

Nov 08, 2008 | Office Equipment & Supplies

3 Answers

Fraction button directions


Yeah, there isn't a fraction button on an 84. You have to enter it manually as 4/9 or if simplifying a decimal, use the Ans>Frac under the MATH menu

Aug 26, 2008 | Texas Instruments TI-84 Plus Calculator

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