As posted before:
ab^4 = 48 then a = 48/b^4
sub into the second equation
48/b^4 * b = 72
48/72 = b^3
b = .87358 then a = 82.4194
g = grogg age now d = dad age now
(g-7) *6 = d- 7 <====given re-arrange to g = (d+35)/6
(g-4) * 4 = d- 4 or 4g -16 = d-4 or 4g = d+12 sub in the vlaue of g above
4 (d +35) / 6 = d + 12
4d +140 = 6d + 72
2d = 68
d = 34 y/o
Blue is '3' out of 1 + 2 +3 +4 =10 or 3/10ths 3/10 * 180 = 54 blue marbles
This is ABOUT 4 x 49 = 196
63/100 would be one other way
9 ca/ / min * 45 min = 405 cal ( see how 'min' cancels out?)
I suppose you looked for the zeroes of (x^2-9)/ 3x = 0
what about -3 ? (note that x cannot equal zero....because the denominator would be 0)
x^2 - 9/(3x) = 0 maybe??
3x^3 = 9
x^3 =3
\(x =\sqrt[3]{3}\)
