<span>For any positive integer, n, 6 DOES NOT EVENLY divide 7n-1; 6 doesn't even divide the expression in all positive integers. For postive integers we have, n = 1,2, 3, .... Suppose n =1 then we have 7(1) -1 = 6/6 = 1 It divides it but not evenly since 1 is not an even number. Take n= 2; we have 7(2)-1 = 13/6 and take n =3; we have 7(3)-1 = 20/6 so it is really obvious that 6 doesn't divide all the expression</span>
A number that cannot be expressed that way is irrational. For example, one third in decimal form is 0.33333333333333 (the threes go on forever). However, one third can be express as 1 divided by 3, and since 1 and 3 are both integers, one third is a rational number.
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Answer:
x=7/5
Step-by-step explanation:
4+3=5x
7/5=5x/5
7/5=x
Answer:
The sequence is arithmetic because the terms have a common difference
Step-by-step explanation:
The difference between each term in the sequence is constant. The sequence shown below, considering the y values of the coordinates, are 9, 7.5, 6, 4.5, 3, 1.5. Each term has a difference of 1.5, thus making all terms have a common difference, and making the sequence arithmetic.
Answer:
The number of half acres plots are 850 .
Step-by-step explanation:
As given
Mr. george owns 425 acres of land.
if he divides the land into half-acre plots .
Let us assume that the numbers of half - acres plots are x .
Than the equations are
solving the above
x = 2 × 425
x = 850
Therefore the number of half acres plots are 850 .