2007-10-21 04:30:08 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
[11]
Let the no of foxes and rabbits be 2x and 9x respectively
According to the problem
9x-2x=35
7x=35
x=35/7
=5 Therefore,there are 2*5 or 10 foxes and 9*5 or 45 rabbits
2007-10-21 14:06:21 · answer #1 · answered by alpha 7 · 0⤊ 0⤋
OK
foxes = f; rabbits = r for every 2 foxes that are 9 rabbits, so
9f=2r
Also f +35 = r. So two equations, two unknowns.
9f -2r =0
f -r = -35; multiply bottom by 2
9f - 2r = 0
2f -2r = -70; subtract bottom
7f = 70
f=10
There are 10 foxes. That means there are 45 rabbits.
Let's check:
10 foxes for every 45 rabbits = 10/45 = 2/9 check! YES!
Hope that helps!
2007-10-21 11:37:32 · answer #2 · answered by pyz01 7 · 0⤊ 0⤋
9-2=7
7x5=35
5x2=10 foxes
9x5=45 rabbits
2007-10-21 11:34:52 · answer #3 · answered by ajfrederick9867 4 · 0⤊ 0⤋
Foxes______ Rabbits
__2__________9
(x - 35)_______x
(x - 35) / x = 2 / 9
9x - 315 = 2x
7x = 315
x = 45
45 rabbits
10 foxes
2007-10-21 15:15:06 · answer #4 · answered by Como 7 · 1⤊ 0⤋
f/r=2/9
f+35=r
(r-35)/r=2/9
r-35=(2/9)r
(7/9)r=35
r=45
f=r-35=10
2007-10-21 11:43:02 · answer #5 · answered by rwbblb46 4 · 0⤊ 1⤋