the numver of macaws varied inversely as the number of apes awuared. when there were 4 macaws, there were 10 apes. how many macaws were there when there were 2 apes?
2007-04-02 14:49:29 · 3 answers · asked by argentina_mandy20 1 in Science & Mathematics ➔ Mathematics
macaws vary inversely as apes squared
=> if number of apes is multiplied by x, number of macaws is multiplied by 1/x^2.
Number of apes has gone from 10 to 2, so is multiplied by 1/5. So the number of macaws will be multiplied by 5^2 = 25.
So the number of macaws will be 4×25 = 100.
2007-04-02 14:53:23 · answer #1 · answered by Scarlet Manuka 7 · 0⤊ 0⤋
4 over 10 = 2 over x
multiply 4 by x and 10 by 2
20(10x2)= 4x
divide each side by 4 to get x
x=5
2007-04-02 21:55:48 · answer #2 · answered by Teel H 2 · 0⤊ 0⤋
nevermind. i misread it. maybe type it better next time?
scarlet is right.
2007-04-02 21:53:47 · answer #3 · answered by chief_auto_parts1990 3 · 0⤊ 0⤋