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asambeis [7]
3 years ago
11

What is 1 7/12 - 2 1/3 =

Mathematics
2 answers:
marissa [1.9K]3 years ago
8 0
1 7/12 -2 1/3 ____ Should look like this. First they must be improper fractions to solve. That should give you something to start.
Mariana [72]3 years ago
5 0
Make each an improper fraction. Turn them into improper fractions by multiplying the whole number by the denomintor then adding the numerator and putting it over the original denominator. Then subbtract by multipying the second fraction by 4/4 and then subtract and simplify if possible. Hope this helped!
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Use exponent properties to simplify the following expression with a positive exponent.
Alecsey [184]

a^{-n}=\dfrac{1}{a^n}\\\\2^{-8}=\dfrac{1}{2^8}\\\\a^n\cdot a^m=a^{n+m}\\\\2^5\times2^1=2^{5+1}=2^6\\\\2^5\times2^{-8}\times2^1=\boxed{\dfrac{2^6}{2^8}}

3 0
3 years ago
–8(x – 4) - (12x – 8)
nlexa [21]

Answer:

-20x+128

Step-by-step explanation:

–8(x – 4) - (12x – 8)

distribute: -8x+32-12x+96

combine like terms

-20x+128

5 0
3 years ago
Jennifer is the owner of a video game and entertainment software retail store. She is currently planning to retire in 30 years a
olchik [2.2K]

Answer:

112323

Step-by-step explanation:

4 0
3 years ago
The length of a rectangle is 5 m greater than the width. The perimeter is 150 m. find the width
Elza [17]

P = perimeter

Perimeter of a rectangle = l + l + w + w

or  P = 2l + 2w

You know:

P = 150 m

l = w + 5     [length is 5 m greater than the width]

P = 2l + 2w        Plug in what you know

150 = 2(w + 5) + 2w     Simplify, distribute/multiply 2 into (w + 5)

150 = 2w + 10 + 2w

150 = 4w + 10     Subtract 10 to both sides of the equation

140 = 4w       Divide 4 on both sides

35 = w

PROOF               l = w + 5 --->  l = 40

P = 2l + 2w

150 = 2(40) + 2(35)

150 = 80 + 70

150 = 150

4 0
3 years ago
How do u solve <br> 1×-2y=4<br> -1×+10y=8
Molodets [167]

Answer: x = -8 ; y = -6

Step-by-step explanation:

1*x-2*y=4

1*x = 4 + 2*y

x = 4 + 2*y

Now you replace the value of x on the following equation:

-1*x+10*y=8

-1*(4 + 2*y) = 8

-4 - 2*y = 8

-2*y = 8+4

-2*y = 12

y = -12/2

y = -6

You replace the value of y in the previous equation:

x = 4 + 2*y

x = 4 + 2*(-6)

x = 4 - 12

x = -8

6 0
3 years ago
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