Answer: No, the set of odd integers is not closed for addition
Explanation:
It's asking if we can take any two odd numbers, add them, and get an odd number result.
Here are some counterexamples
3+5 = 8
1+23 = 24
89+11 = 100
All it takes is one pair of odd numbers to add to something not odd to show that the set of odd integers is not closed for addition.
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In contrast, the set of even numbers is closed under addition. We can add any two even numbers to get some even number result
2+4 = 6
8+10 = 18
20+30 = 50
and so on
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The proof is given below
m and n are integers
2m = some even number
2n = some other even number
2m+2n = 2(m+n) = 2*(integer) = another even integer
This proves that adding any two even integers leads to another even integer.
Answer:
CHILDREN= 389
ADULT=310
Step-by-step explanation:
1) A + C = 710 2) A*2.50 + C*1.2 = 1288.75
OR, A= 710-C (710-C)*2.50 + C*1.2=1288.75
1775-2.50*C+1.25*C=1288.75
1775 -1.25*C = 1288.75
-1.25*C=1288.75-1775
1.25*C=486.25
C = 486.25/1.25
C = 389
Again or, A + C = 710
A = 710 - C
A = 710 - 389
A = 321
Answer:
45
Step-by-step explanation:
Flip the fraction, 1/5 to 5/1, and reverse the equation to a multiplication problem.
Let me know if you have questions or concerns.
Answer:
Step-by-step explanation:
The formula for Volume of a sphere is
Here we are given the value of radius as r=3 inches
Now we replace r=3
Hence the volume of the sphere is Cubic inches
Answer
Add all the #'s then divide by how many numbers are there
0 + (-5) + (-3) + 0 + 0 + (-6) + (-3) + (-5) + (-2) + 0 = -24
24 divided by 10 = 2.4
ANSWER=2.4