Only once, any number higher will pass it
The divisibility rule
For example
The divisibility rule for three is adding the number together
1+8+6+4+2+6= 27
And 3 is divisible by 27
And for nine
It’s similar to three
Answer:
Step-by-step explanation:
you do this by swapping x and y values
so it becomes x = y/(y+7)
cross-multiply to get
x(y+7) = y
xy + 7x = y
xy - y = -7x
y(x-1) = -7x
y = -7x/(x-1)
y =
Answer:
There are 177,100 ways.
Step-by-step explanation:
Since there is no regard to order, we use the combinations formula to solve this question.
Combinations formula:
is the number of different combinations of x objects from a set of n elements, given by the following formula.
In this question:
6 keyboards from a set of 25. So
There are 177,100 ways.
Answer:
21x^5−21x^2
Step-by-step explanation:
hope this helps