MATHEMATICS MIDDLE SCHOOL

Which sets of numbers are closed under subtraction?Choose all answers that are correct.

A.
odd natural numbers

B.
rational numbers

C.
{0, 1}

D.
{0, 1, 2}





sorry for bugging you i just don't get it

Answers

Answer 1
Answer: I'm pretty sure it is only b because when you subtract two rational numbers, you always get back a rational number.

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You travel between these two mile markers and then find your average speed in miles per hour. Which equation does NOT represent this situation?
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So I have a problem with a pie chart and I need to find the total amount of people surveyed using the amount of one portion of it.I cannot figure out how to do this, so I hope someone can help me. Also, I need you to explain how you got your answer because this is basically an essay question because I need to explain the steps on how I got it

Answers

42% = 210 so, 
42/100=210/x
Cross multiply-
42x=21000
Divide by 42 on both sides and you get- 500

Answer:

500 Total people were surveyed

Step-by-step explanation:

All you gotta do is divide the number of football players, 210, by the percentage, 0.42. And when you divide 210 by 0.42, you get the total number of people surveyed, which was 500.

210 ÷ 0.42 = 500

-9(x+3)=18
SOLVE THE EQUATION.
WILL GIVE BRAINLIST AND THANKS

Answers

Answer:

x = -5

Step-by-step explanation:

-9(x+3) = -9x-27

Add 27 onto both sides and get -9x = 45

Divide -9 on both sides and you'll see that x = -5 because 45/-9

Answer: X=-5        distribute the -9 to x and 3 move the 3 over to the 18 and - 18-3 then dived -9x/15                                

Please help!You must roll a total of 9 on two number cubes to win the game. Alex must roll a 6. Who is more likely to win the game on the next turn? Explain.

Answers

There are 36 possible combinations for 2 dices because there are 6 numbers per di
6 has 5 combinations because you must use 2 dices
1+5
2+4
3+3
4+3
5+1
So Alex has (6)/(36) or (1)/(6) chance of getting exactly 6

While 9 has 4 combinations
3+6
4+5
5+4
6+3
So you have (4)/(36) or (1)/(9) chance of getting exactly 9

So Alex has a better chance

To roll a 9, you need a combination of 3 and 6, or 4 and 5, in any order. To roll a 6, Alex needs a combination of 1 and 5, 2 and 4, or 3 and 3, in any order. There are 4 possible ways to roll a 9 and 5 possible ways to roll a 6, so Alex is more likely to win

Numer 1 please and can u write an equation

Answers

2. h=-9.4. 3. p=5/4. 4. k=75. 5. not true. 6.m=18. 7.t=-5/4 or t=-0.8

PLEASE ANSWER!!!!!!!!!!!!!!!!!!

Answers

The person buys a total of 20 frames.
 'f' of the frames are size 4 by 6, and cost 5.8
that means 20 - f frames are size 5 by 7, and cost 9.6
And the total is 80.8

So... we get:

5.8f + (20-f)9.6 = 80.8

Answer is B

Find the cube root of 2^6*3^6*5^3

Answers

Answer:

180

Step-by-step explanation:

Given that :

2^6*3^6*5^3

To Find :

The cube root of 2^6*3^6*5^3

Solution :

First of all let clear this term,

\bigstarCube root :

Cube root is the number which produces a given number when cubed.

Now,

Your Answer :

\sf \n \n\implies 2^6*3^6*5^3= 2^6* 3^6*5^3\n \n\implies 64* 729* 125\n \n \implies 5832000\n \n \bigstar\textbf{Cube root of 5832000= 180}

Answer:

180

Step-by-step explanation:

2^6*3^6*5^3= 2⁶× 3⁶×5³

=64×729×125

=5832000

cube root of 5832000= 180
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