Let a, b be two odd integers. Then both can be written as
a=2k-1, k is an integer
b=2m-1, m is an integer
So,
a-b=2k-1-(2m-1)=2k-2m-2=2(k-m-1)
Since, k and m and 1 are all integers, then (k-m-1) is also an integer. Hence, 2(k-m-1) is an even integer.
Thus, a-b is even.
Are these the answer choices. If so I would say D
Read the instructions, seeding rate varies with type of grass, from 1 lb (Kentucky blue) to 3 lb/1000 sq.ft.
But please post in correct category next time.
Answer:
La afirmación es falsa, no todos los divisores de 100 son divisores de 50, ya que solo se toman en cuenta sus divisores comunes, los cuales son todos los divisores de 50. Expresamos a 100 en sus factores primos: 100 = 2 · 2 · 5 · 5 = 2² · 5² Divisores de 100: {1, 2, 4, 5, 10, 20, 25, 50, 100}
Step-by-step explanation:
Answer:
It took Mr. Holloway 28 weeks to make 7 guitars.
Step-by-step explanation:
The question is incomplete, but if we are trying to find out how many weeks it would take him to make 7 guitars then the answer would be 28.
First you have to find out how many weeks it takes him to make 1 guitar.
8 ÷ 2 = 4 (4 weeks to make 1 guitar)
Then you have to multiply 4 by 7 since it takes 4 weeks to make 1 guitar.
4 * 7 = 28 (28 weeks to make 7 guitars)
