Question 269353
Chandra spent 2/5 of her income of January for rent, and 3/4 of the remainder on other expenses.If she put the remaining $180 in her savings account, how much was her income in January?

let the income be x

rent 2/5 *x
remaing amount = 3/4(x- 2/5*x)

2/5 *x + 3/4(x-2/5*x) +180 =x

2/5*x +3/4* (5x-2x/5) +180= x

2x/5 + 9x/20 +180=x

(8x+9x-20x)/20= -180

-3x= -3600

x= -3600/-3   = 1200

the income is $1200