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Let the number of nickels, dimes and quarters be n, d, q respectively. Then n +d + q = 30 5n + 10d + 25q = 550 But d = 2n, so: n + 2n + q = 30 => 3n + q = 30 5n + 10(2n) + 25q = 550 => 25n + 25q = 550 => n + q = 22 Which gives two simultaneous equations to solve, resulting in: n = 4, q = 18 So there are 18 quarters (plus 4 nickels and 8 dimes).
(The assumes that "the number" in the question is not n, although if they are they same number, this is still true.) "If the sum of the digits of the number is divisible by n, then the number itself is divisible by n" is true if n is 3 or if n is 9.
A square number is a number which can be expressed as n x n where n are integers.
n = 5
A number n is positive: n > 0
Since the total weight on the left side is 550 N (250 N + 300 N), the total weight on the right side should also be 550 N for the scaffold to be in equilibrium. Therefore, the reading on the right scale should be 150 N (550 N - 400 N) to balance the scaffold.
Let the number of nickels, dimes and quarters be n, d, q respectively. Then n +d + q = 30 5n + 10d + 25q = 550 But d = 2n, so: n + 2n + q = 30 => 3n + q = 30 5n + 10(2n) + 25q = 550 => 25n + 25q = 550 => n + q = 22 Which gives two simultaneous equations to solve, resulting in: n = 4, q = 18 So there are 18 quarters (plus 4 nickels and 8 dimes).
n=1to n=2
(The assumes that "the number" in the question is not n, although if they are they same number, this is still true.) "If the sum of the digits of the number is divisible by n, then the number itself is divisible by n" is true if n is 3 or if n is 9.
The quotient of 14 and a number can be represented as 14 ÷ x, where x is the unknown number. This expression simplifies to 14/x. The quotient is not a fixed value unless the specific value of x is known.
If n is the number, then it would be n - 3 or n + (-3)
A square number is a number which can be expressed as n x n where n are integers.
n = 5
n = 1, 3 or 9.
US-550 N - 182 miI-40 W and NM-371 N - 213 mi
A number n is positive: n > 0
Let the number of sides be n and so:- If: 0.5*(n^2 -3n) = 275 Then: n^2 -3n -550 = 0 Solving the above quadratic equation: n has positive value of 25 Each interior angle: (25-2)*180/25 = 165.6 degrees