Which fraction has a numerator of 9 and a denominator of 13? 13/9 or 9/13

Answers

Answer 1
Answer:

Answer:

9/13, The numerator is always on top and the denominator is always on the bottom.


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Describe how math in middle school differs from
high school math class?

Answers

high school math classes are more advanced than middle school math classes
High school math classes are a higher difficulty level, but most of what you learned in middle school math classes is used. It’s best to remember what you learned because you will end up using it in high school.

Factor the expression
10x+15y=

Answers

5(2x+3y) is the most it can be factored. You first have to find the greatest common factor and once thats done just try using methods such as the diamond. The only thing it was able to do using the methods was this.

Final answer:

To factor the expression 10x+15y, we can factor out the greatest common factor (GCF) of 5 to get 5(2x+3y).

Explanation:

To factor the expression 10x+15y, we need to find the greatest common factor (GCF) of the two terms.

In this case, the GCF is 5, because both 10 and 15 are divisible by 5.

We can then factor out the GCF to get: 5(2x+3y).

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Simplify this expression. 2 square root 5 (13 + square root 2)

Answers

The product of 2 square root 5 (13 + square root 2) in simplified form is 26√5 + 2√10

Calculating the product in simplified form

From the question, we have the following parameters that can be used in our computation:

2 square root 5 (13 + square root 2)


Express as products

So, we have

2√5 * (13 + √2)

Open the brackets

So, we have

2√5 * (13 + √2) = 2√5 * 13 + 2√5 *√2

Multiply the radicands

So, we have the following

2√5 * (13 + √2) = 2√5 * 13 + 2√10

Evaluate the products

So, we have the following

2√5 * (13 + √2) = 26√5 + 2√10

Hence, the solution is 26√5 + 2√10

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Answer:

i'm assuming it's 2*√5(13+√2) so 2√10+26√5

Step-by-step explanation:

Consider the following pair of equations:y = x + 4
y = –2x – 2

Explain how you will solve the pair of equations by substitution. Show all the steps and write the solution in (x, y) form.

Answers

 {  y = x + 4
    y = - 2 x - 2 

Subsititute  y = - 2 x - 2 :

[ (- 2 x - 2 ) = x + 4 ]

( - 2 x - 2 ) = x + 4

Add 2 to both sides:

- 2 x - 2 + 2 = x +  4 + 2

- 2 x  = x + 6 

Subtract x for 

(x - y)^2 + 4z(x - y) +3z^2 (and btw ^2 means squared and this is going for 10 points)

Answers


(x - y)² = x² + y² - 2xy

4z(x - y) = 4zx - 4zy

3z²  =  3z²

Addum all up:

               x² + y² - 2xy + 4zx - 4zy + 3z²      

(To me, it was a lot simpler before I simplified it.)

In 4 years, harry’s age will be the same as jim’s age is now. in 2 years, jim will be twice as old as harry will be. find their ages now.

Answers

The answer to this question would be:
Jim     =6 years
Harry =2 years

To answer this question, you need to translate the description into a  mathematical equation. If H= Harry's ages and J= Jim's ages, then the equation should be look like this:

1. H+4= J
2. (J+2)= 2(H+2)
     J+2= 2H+4
     J= 2H +2

If you put the 1st and 2nd equation together, the result would be:
H+4= J
H+4= (2H +2)
H-2H= 2-4
-H= -2
H=2

After that insert the H value to either 1st or 2nd equation.
H+4= J
2+4=J
J= 6

Answer:

harry is 2 jim is 6

Step-by-step explanation: