2,100 invest 2 accounts, a profit of 7% & 4% earned totaling 132.00, how much did each account earn

Question

Need help please

Answer 1

?????? yu split 2100$ tween 2 akkounts & get interest for 1 yeer ?????\

1 akkount=7% other=4%

interest=132$

132/2100=0.628571 averaej % interest, so most munee get 7%

0.07*x +0.04*(2100-x)=132

or 7x +4*(2100-x)=13,200

7x-4x+8400=13,200

3x=13,200-8400=4800

x=1,600$

other akkount=2100-1600=500$

Answer 2

if a b and c starts a business and A earn 15 more than B find the profit

Answer 3

the 7% account earned $84.00

the 4% account earned $48.00