MATHEMATICS MIDDLE SCHOOL

What is the value of 8P4? a.40,320 b.1680 c.32 d. 24

Answers

Answer 1

Answer:

Answer:

1680

Step-by-step explanation:

We are find the permutations of 8 permute 4

8!/(8-4)!= where ! means factorial

8!/ 4!

8*7*6*5*4*3*2*1

-------------------------

4*3*2*1

Canceling the 4,3,2,1

We are left with

8*7*6*5

---------------

1680

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What is 65% of 80x please show your work. Remember the x

Answers

Answer=52x

65%=65/100=.65

80x*.65=52x

60% of 80x is 52x

When measuring distance 12 beads are approximately equal to 6 erasers. how many erasers are equal to 18 beads? How many beads are equal to 42 erasers?

Answers

Well, since 12 divided by 6 would equal 2. So 9 erasers would equal to 18 beads (18 ÷ 2). 21 beads equal 42 erasers.

Whole numbers greater than 25 but less than 33

Answers

So 26 27 28 29 30 31 32 right I think that's what your asking because whole numbers have no decimals

Well, the question simply means that you should give all the numbers between 25 and 33. And those are;
26, 27, 28, 29, 30, 31, 32
Hope i helped. Have a nice day.

A veterinarian assistant has a 20 pound bag of cat food if he feeds each cat 2/5 pounds how many cats can he feed

Answers

Answer:

Step-by-step explanation:

20 / (2/5)

To divide by a fraction, multiply by the reciprocal.

20 × (5/2)

He can feed 50 cats.

50 cats

20 pounds is 100/5 pounds when written with a denominator of 5. Then you divide 100 by 2 and get 50.

What the the equation -984-n=-285 what does n equal

Answers

When you do this, you want to isolate one variable on one side of the equation. Add 984 to both sides, first. You get -n = 699.
You aren't done yet because the problem isn't complete until the variable is positive. To do that, multiply both sides by -1.
The answer is n = -699.
Hope that helped you!

-984-n=-285
+n
-984=-285+n
+285
-699=n

n is equal to -699

If the equation is n+4/2-3=13 than 'n' will be 28 but how would you get the answer 14?

Answers

There's only one number that 'n' can be.
It's called the solution to the equation.

You said n + 4/2 - 3 = 13

Notice that 4/2 is really 2 : n +   2    - 3 = 13

Notice that 2 - 3 = -1    n    - 1    = 13

Add 1 to each side:    n    = 14 .

That's the solution. 'n' is 14 . It's not 28 .

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Question 11 please i need help

The national catch of Atlantic Cod has been declining in the past few decades. We can model this decline with the equation y = −.003x2 + .120x + 1.909 where x is the number of years since 1950 and y is the catch in millions of metric tons. In which year did the catch reach its maximum? In which year will the catch reach 0? For what years was the catch increasing? Decreasing? When was the catch greater than 2.5 million metric tons? Show all of your work or explain how you came up with your solutions.