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dusya [7]
2 years ago
13

How to divide fractions

Mathematics
2 answers:
lorasvet [3.4K]2 years ago
8 0
When dividing fractions, what you do, is turn it into multipcation. You use the multiplicitve inverse (reciprocal) to multiply.

For example:

3/7÷ 5/8 = 3/7×8/5
Oxana [17]2 years ago
5 0

Dividing by a fraction is the same as multiplying by its reciprocal. In other words, we can change the division sign to multiplication and flip the second fraction. Let's try an example.

\frac{1}{2} ÷ \frac{5}{9} can be rewritten as \frac{1}{2} × \frac{9}{5}.

Now, we are simply multiplying fractions.

Multiply across the numerators and the denominators

\frac{1}{2} × \frac{9}{5} = \frac{9}{10}

Therefore, \frac{1}{2} ÷ \frac{5}{9} = \frac{9}{10}

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sp2606 [1]

Answer:

14.8

Step-by-step explanation:

By the Pythagorean theorem, ...

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... x = √218 ≈ 14.7648 ≈ 14.8

4 0
2 years ago
Read 2 more answers
I would like to create a rectangular vegetable patch. The fencing for the east and west sides costs $4 per foot, and the fencing
Anestetic [448]
Let the lengths of the east and west sides be x and the lengths of the north and south sides be y.  the dimensions you want are therefore x and y.

The cost of the east and west fencing is $4*2*x; the cost of the north and south fencing is $2*2*y.  We have to put in that "2" because there are 2 sides that run from east to west and 2 sides that run from north to south.



The total cost of all this fencing is $4(2)(x) + $2(2)(y) = $128.  Let's reduce this by dividing all three terms by 4:  2x + y = 32.

Now we are to maximize the area of the vegetable patch, subject to the constraint that 2x + y = 32.  The formula for area is A = L * W.  Solving 2x + y = 32 for y, we get y = -2x + 32.

We can now eliminate y.  The area of the patch is (x)(-2x+32) = A.  We want to maximize A.

If you're in algebra, find the x-coordinate of the vertex of this quadratic equation.  Remember the formula x = -b/(2a)?  Once you have calculated this x, subst. your value into the formula for y:  y= -2x + 32.

Now multiply together your x and y values to obtain the max area of the patch.


If you're in calculus, differentiate A = x(-2x+32) with respect to x and set the derivative equal to zero.  This approach should give you the same x value as before; the corresponding y value will be the same;  y=-2x+32.

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3 years ago
Hannah but 3.4 pounds of apples she paid $.89 per pound how much did Hana pay for apples
Irina18 [472]

Answer:

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Step-by-step explanation:

3.4 × 0.89 = 3.026 $

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3 years ago
Consider the triangle , which statement is true about the length of the sides? Each side has a different length
yulyashka [42]

Answer: The answer for this is "The three sides have the same length."


Because its a equilateral triangle (we know this because all the angles are 60 degrees) all the sides are equal.

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2 years ago
Can someone please help?
PIT_PIT [208]

Step-by-step explanation:

are this form 1 question???

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