MATHEMATICS MIDDLE SCHOOL

The decimal number 14.75 is an example of an irrational number.True


False

Answers

Answer 1
Answer: an irrational number cannot be written as a simple fraction like 34/73 or a/b.  the number in decimal form, does not end because if it did end, you could write it as that number over one, 0.66666... is rational because it is equivelent to 2/3

pi is irrational because it cannot be represented by a simple fraction. we can aproxamate pi at 22/7, but 22/7 divided out doesn't end so it is not the whole pi

so the answer is False since 14.75 cand be written as 14.75/1 or 1475/100
Answer 2
Answer: FALSE. An irrational number is a real number that can't be written as a simple fraction. So your exemple is rational. PS: pi is a irrational number for exemple

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Answers

A, (0,0) is the answer

which digit can replace the? to make this number sentence true 614,835 > 61?,914 there can be 1 to 4 answers

Answers

ok so basically
we find max and min
x>y means x is bigger than y
 just look at the digits after the question mark
614835>61?914
subtract 610,000 for ease
4845>?914
you can see that the question mark cannot 4 or more
so therefor it can be less than 4 aka 3,2,1,0
the question mark can be 0,1,2,3
between the numbers 1 to 4 it can not be 4 because 614,914 is bigger than 614, 835 
but it can be 1 or 2 or 3 :)))
I hope this is helpful
have a nice day

Helppppppppppppppppp

Answers

Disjunction is OR, written like a right side up ∨.  The upside down V is conjunction, AND, written ∧.

Let's make the disjunction truth table.

A  B   A ∨ B

F  F       F

F T       T

T F       T

T T       T

A or B is true when either A is true or B is true or both.  It's false when they're both false.    That's called inclusive OR.

Answer:   C

Interestingly, in the original algebra created by Boole, he preferred exclusive OR, written A^B.   A^B is false when both A and B are true, but otherwise like inclusive OR.  When we do it this way, exclusive OR is like addition mod 2 and AND is multiplication mod 2, so the algebra of Boole was more like regular algebra than what we call Boolean algebra today.
I agree with c and you are very smart to think c I agree

Solve:

r
5
- 6 = -1

Answers

that's right, 5- 6= -1
If this is your question: 5r - 6 = -1 then keep reading

1) Write the question.
5r - 6 = -1

2) Bring the -6 to the other side by doing the inverse, +6 to both sides
5r = 5

3) Divide both sides by 5, to get the value of r
r = 1

The above is the answer :)

75% of what number is 27?

Answers

So we want to know the number from which we take 75% and get 27. If the number we are looking for is x, then the equation to find that x would be: (75/100)*x=27 which says seventy five percent out of x is equal 27. So, x=(27*100)/75. And finally, x= 2700/75=36. So, 75% out of 36 is 27.

at a restaurant the ratio of kids meals sold to adults meal was 5:4. if there were 20 kids meals sold, what is the combined amount of kids and adults sold meals sold?

Answers

I would set up a proportion:

(20)/(x)=(5)/(4)

The proportion basically says, "if there are 5 kids meals for every 4 adult meals, that means 20 kids meals would mean x adult meals."  Just cross multiply and then solve for x:

(20)/(x)=(5)/(4)\n5x=80\nx=16

That means there are 20 kids meals sold and 16 adult meals sold, so the result is:

36 meals in total.
5x=20\ \ \ \ | divide\ by\ 5\n\nx=4\n\n5x+4x=9x=9*4=36\n\nCombine\ amount\ is\ 36.
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