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3 years ago

Divide the following fractions and reduce to lowest terms 2/3 divided by 4/5

1 answer:

5 0

Well to divide 2 fraction you first have to find a least common number between the 2 bottom numbers in the fractions, we know automaticall that 15 fits in both the 3 and the 5. now u have to find out what to multiply by each number to get 15, for example what number do you multiply by 3 to get 15?? well it will be 5, so go ahead and multiply it by the fraction (note that what you do in the bottom you have to do in the top) this will give you 10/15, because I multiplied the top and bottom number by 5... lets try the other one what number do you multiply by 5 to get 15?? well it will be 3 so go ahead and multiply that to get 12/15.. now add the top numbers (note that the bottoms always stay the same, you never add or subtract them) when you do you will get 22/15, now you have to see if you can simplify it any further in this case you can't so your final answer is 22/15

Hope this helps

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HELP PLZ PICK ONE OF THE ONES SHOWN:

defon

I am doing with Question Number 2

Let the two numbers be 'x' and 'y'.

According to the question, the product of two numbers is 14.

$x \times y=14$

So, xy=14 (Equation 1)

Now, one of the numbers is 3 ½ times the other.

So, $x = 3\frac{1}{2}\times y$

$x=\frac{7}{2}y$ (Equation 2)

Substituting the value of 'x' from equation 2 in equation 1, we get

$\frac{7}{2}y \times y = 14$

$\frac{7}{2}y^{2} = 14$

$y^{2} = 4$

So, y= 2 and -2

So, $x=\frac{14}{2}$ and $x=\frac{14}{-2}$

x=7 and -7

Numbers are 2,7 and -2,-7.

Sum of numbers 2 and 7 = 9

Sum of numbers -2 and -7 = -9.

6 0

3 years ago

A side of the triangle has been extended to form an exterior angle of 128°, find the value of x

Tamiku [17]

Answer:

x=52

step by step:

x+128=180

x=180-128

x=52 .

5 0

3 years ago

How do we find what x is in this problem

Alexxx [7]

Set The Numbers On The Side Equal To The Equation. Use Inverse Operation And Divide Since The X Is Used In Multiplication.

6 0

3 years ago

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Q # 6 please multiply help

Mkey [24]

This is a problem of Difference-of-squares. We know that for a difference of squares $a^2-b^2$ the factorization is given by:

$(a-b)(a+b)$

To learn this you need to remember that a difference means subtraction. So applying those concepts we can solve this problem step by step.

Applying distributive property:

$(2n)(2n-2)+2(2n-2)$

Applying distributive property again:

$4n^2-4n+4n+4$

Simplifying:

$4n^2-4$

The correct answer is C

3 0

3 years ago

What is a scale factor because i'm new to 7th grade and i'm clueless.

faust18 [17]

Answer:

A scale factor is a number which scales, or multiplies, some quantity.

Step-by-step explanation:

i.e: this shape multiplied by a scale factor of 2. Usually solved by a ratio

4 0

3 years ago

Read 2 more answers