Rhianna's movie collection contains 18 movies, including 8 comedies.
1 answer:
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Answer:
A) (x, y) = (2-3n, 4n-1) . . . . for any integer n
B) no solution
Step-by-step explanation:
A) All coefficients have a common factor of 3, so any solution of the reduced equation will be a solution of the given equation. The reduced equation is ...
4x +3y = 5
A graph of the original shows (x, y) = (2, -1) is a solution. Then other solutions will be those values with a multiple of 4 added to y and the same multiple of 3 subtracted from x:
(x, y) = (2 -3n, 4n -1)
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B) The left side of the equation is an even number for any integer values of x and y. The right side is an odd number. There can be no solution.
Answer:
and
Step-by-step explanation:
If a number 'x' is a perfect square, then is rational.
25, 36 and 81 are perfect squares, but 54 and 120 aren't, so the irrational values are and