<span>Income earned over one year is principal * int rate so we have
0.12*A + 0.13*B +0.14*C = 400
and A + B + C = 3000
and A+B = C</span>
Ok I will get you eroe in the car
11/25(14/24)+14/25(13/24)=
=154/600+182/600=
=336/600=14/25
2r=8+3b
r/(r+b)=5/7
cool problem bro
so first
2r=8+3b
divide both sides by 2
r=4+1.5b
sub 4+1.5b foor r
(4+1.5b)/(4+1.5b+b)=5/7
(4+1.5b)/(4+2.5b)=5/7
times (7)(4+2.5) to both sides (cross multiply)
7(4+1.5b)=5(4+2.5b)
distribute
28+10.5b=20+12.5b
minus 10.5b both sides
28=20+2b
minus 20 both sides
8=2b
divide by 2
4=b
sub back
r=4+1.5b
r=4+1.5(4)
r=4+6
r=10
10 red
4 blue
