1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
UNO [17]
3 years ago
8

How do you divide mixed fractions

Mathematics
2 answers:
defon3 years ago
7 0

To divide fractions, we can use a method called "copy dot flip."

Let's say we were given 1/4 ÷ 1/2.

Copy: the first fraction.

Dot: change from dividing to multiplying.

Flip: take the reciprocal of the last fraction.

________

Copy: 1/4

Dot: · (×)

Flip: 2/1

Now, write as an equation.

1/4 · 2/1

________

Now, to multiply fractions, you multiply the number right next to it.

\frac{1*2}{4*1}

Simplify.

2/4 or 1/2

________

Best Regards,

Wolfyy :)

Lelu [443]3 years ago
3 0

Answer:

Step-by-step explanation:

You first need to make the fraction improper

then divide

Example:

2 and 1/2 divided by 1 and 2/4

5/2 divided by 6/4

5/2 times 4/6

20/12

10/6

5/3

You might be interested in
Here is a graph of days(d) of year and the predicted number of hours of sunlight(h)
suter [353]

Look at where the peak is. So, the greatest number of hours of sunlight would be around 180.

8 0
2 years ago
Can we obtain a diagonal matrix by multiplying two non-diagonal matrices? give an example
polet [3.4K]
Yes, we can obtain a diagonal matrix by multiplying two non diagonal matrix.

Consider the matrix multiplication below

\left[\begin{array}{cc}a&b\\c&d\end{array}\right]   \left[\begin{array}{cc}e&f\\g&h\end{array}\right] =  \left[\begin{array}{cc}a e+b g&a f+b h\\c e+d g&c f+d h\end{array}\right]

For the product to be a diagonal matrix,

a f + b h = 0 ⇒ a f = -b h
and c e + d g = 0 ⇒ c e = -d g

Consider the following sets of values

a=1, \ \ b=2, \ \ c=3, \ \ d = 4, \ \ e=\frac{1}{3}, \ \ f=-1, \ \ g=-\frac{1}{4}, \ \ h=\frac{1}{2}

The the matrix product becomes:

\left[\begin{array}{cc}1&2\\3&4\end{array}\right] \left[\begin{array}{cc}\frac{1}{3}&-1\\-\frac{1}{4}&\frac{1}{2}\end{array}\right] = \left[\begin{array}{cc}\frac{1}{3}-\frac{1}{2}&-1+1\\1-1&-3+2\end{array}\right]= \left[\begin{array}{cc}-\frac{1}{6}&0\\0&-1\end{array}\right]

Thus, as can be seen we can obtain a diagonal matrix that is a product of non diagonal matrices.
8 0
3 years ago
Read 2 more answers
An iphone costs $1000 and is on sale for 20% off
vfiekz [6]

Answer:

200

Step-by-step explanation:

20 X 1000= 20000 divided by 100

6 0
3 years ago
Read 2 more answers
Solve 2x2 − 8x = −7.
leva [86]
\sf 2x^2 - 8x = - 7  \\  \\ Subtract \ -7 \ from \ both \ sides \ of \ the \ equation. \\  \\ 2x^2 - 8x - (-7 ) = - 7 - (-7)  \\  \\ 2x^2 - 8x + 7 = 0  \\  \\ Use \ quadratic \ formula \ a = 2, b = -8, c = 7 \\  \\ x =  \dfrac{- b \pm \sqrt{b^2- 4ac} }{2a}  \\  \\  \\ x =  \dfrac{-(-8) \pm \sqrt{(-8)^2 - 4 (2) (7) } }{2(2)}  \\  \\ x =  \dfrac{8 \pm  \sqrt{8} }{4}  \\  \\ x = 2 +  \frac{1}{2}\sqrt{2} \ or \ x = 2 +  \frac{-1}{2}  \sqrt{2}

Ur answer is the fourth one 



7 0
3 years ago
Read 2 more answers
Calculus piecewise function. ​
Kipish [7]

Part A

The notation \lim_{x \to 2^{+}}f(x) means that we're approaching x = 2 from the right hand side (aka positive side). This is known as a right hand limit.

So we could start at say x = 2.5 and get closer to 2 by getting to x = 2.4 then to x = 2.3 then 2.2, 2.1, 2.01, 2.001, etc

We don't actually arrive at x = 2 itself. We simply move closer and closer.

Since we're on the positive or right hand side of 2, this means we go with the rule involving x > 2

Therefore f(x) = (x/2) + 1

Plug in x = 2 to find that...

f(x) = (x/2) + 1

f(2) = (2/2) + 1

f(2) = 2

This shows \lim_{x \to 2^{+}}f(x) = 2

Then for the left hand limit \lim_{x \to 2^{-}}f(x), we'll involve x < 2 and we go for the first piece. So,

f(x) = 3-x

f(2) = 3-2

f(2) = 1

Therefore, \lim_{x \to 2^{-}}f(x) = 1

===============================================================

Part B

Because \lim_{x \to 2^{+}}f(x) \ne \lim_{x \to 2^{-}}f(x) this means that the limit \lim_{x \to 2}f(x) does not exist.

If you are a visual learner, check out the graph below of the piecewise function. Notice the gap or disconnect at x = 2. This can be thought of as two roads that are disconnected. There's no way for a car to go from one road to the other. Because of this disconnect, the limit doesn't exist at x = 2.

===============================================================

Part C

You'll follow the same type of steps shown in part A.

However, keep in mind that x = 4 is above x = 2, so we'll deal with x > 2 only.

So you'd only involve the second piece f(x) = (x/2) + 1

You should find that f(4) = 3, and that both left and right hand limits equal this value. The left and right hand limits approach the same y value. The limit does exist here. There are no gaps to worry about when x = 4.

===============================================================

Part D

As mentioned earlier, since \lim_{x \to 4^{+}}f(x) = \lim_{x \to 4^{-}}f(x) = 3, this means the limit \lim_{x \to 4}f(x) does exist and it's equal to 3.

As x gets closer and closer to 4, the y values are approaching 3. This applies to both directions.

4 0
1 year ago
Other questions:
  • Two angles that are complementary __________ form a right angle. 2. angles with a common side and a common vertex ______ form a
    9·1 answer
  • If $95 is put in an account that gets 6% and I add $18 at the end of each year, how much will I have at the end of 11 years?
    5·1 answer
  • Graph the line with the given slope and y-intercept.<br> slope = 2. y-intercept =-5
    7·1 answer
  • Read this scene from The Miracle Worker Act 2.
    8·2 answers
  • A child is observing squirrels in the park and notices that some are black and some are gray. For the next five squirrels she se
    6·1 answer
  • For a moving object, the force acting on the object varies directly with the object's acceleration. When a force of 48 N acts on
    12·1 answer
  • If you rewrote these percents as fractions which one could be written as a whole number over 10? A. 1% B. 5% C.25% D. 40%
    13·1 answer
  • Compare -7 and -10 which is greater​
    6·1 answer
  • (5 - 7i)(8 + i)
    12·1 answer
  • Quadrilateral GHIJ is similar to quadrilateral KLMN. Find the measure of side KL. Round your answer to the nearest tenth if nece
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!