MATHEMATICS MIDDLE SCHOOL

Identify the percent of change as an increase or a decrease. Then find the percent of change.  72 paper clips to 63 paper clips

Answers

Answer 1
Answer: 72-63
_____
  72     

   9
____
  72

9 divided by 72 is 0.125, into a percent is 12.5% decrease.

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hal says that the greatest product of a three digit number and a one digit number is 8,891. is he correct???????????????????????? explain pleaseeee

Answers

He is wrong because 999 times 9=8,991 and Hal put 8,891.

51) Simplify: 4x + 6(3x - 2)

Answers

Answer:

22x-12

Step-by-step explanation:

1)distribute the 6 into the (3x-2)

2)your new equation is 4x+18x-12

3)add like terms: 4x + 18x =22x

4) now subtract 12

5)answer should be 22x-12

Ok i have two algebra questions1.) Subtract: (7x^2-x-2)-(-6x^3+3)

A.) 6x^3+7x^2-x-5
B.) -6x^3+7x^2-x+1
C.) -x^3-x-5
D.) x^2-x+1


2.) f^2*f^4

A.) (2f)^8
B.) (2f)^6
C.) f^8
D.) f^6



Please explain how you got the last one.

I would appreciate it.

And i will thank you if its easy to understand

:)

Answers

Problem A: (7x^2-x-2)-(-6x^3+3)

You can consider the subtraction similiar to a -1(-6x^3+3). The 1 is implied. So to distribute that negative, we multiply this out.

-6x^3+3 becomes 6x^3 - 3

Our problem is now: 7x^2-x-2 + 6x^3 - 3

Now we add together like items. Let's rearrange for our sanity.

+ 6x^3 + 7x^2 - x - 2 - 3

Simplify: 6x^3 + 7x^2 - x - 5

Unfortionately, outside of factoring or something along those lines, that's as simple as we can get it. So the answer is A.

Problem B: f^2*f^4

Math rules tell us when we multiply the same bases with exponents, we add the exponents together. But the base doesn't change.

4+2 = 6. So: f^6 (D)

That's the easy answer: Math rules say so.

To expand on that specific rule, consider x^2 * x^3. What at the root are these saying? Multiply 2 copies of X, and then multiply 3 copies of x.

We can rewrite this same equation as x*x * x*x*x. 

Remember that since all of these are multiplication, there is no order of operations that needs to be followed.

If we were simplifying that version of the equation, we would write x ^ 5.

What is 0.08 as a fraction

Answers

Answer is provided in the image attached.
It is 8/100 because there is two numbers and when you have two numbers right of the decimal it will be that number over 100

When the scarecrow from the Wizard of Oz said, " The sum of the square roots of any two sides of an Isosceles Triangle is equal to the square root of the remaining side." Is he correct or incorrect, please explain how you found the answer.

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he is correct. how do i know? im smart

Write a number sentence that tells what the model represents

Answers

Well it depends on what the model is but if it's an IRA or whatever so if you make your own model that's easy
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