Gwen saves 15% of her income. This month her income is $500 more than last month. The expression 0.15(x+500) represents the amount of money she saves this month, where x is last month’s income. Gwen saves $210 this month. What was Gwen’s income last month?

$900

Step-by-step explanation:

Given:

Gwen's savings this month = 0.15(x + 500)

where,

x = last month's income.

Gwen saves $210 this month

What was Gwen's income in dollars last month?

Gwen's savings this month = 0.15(x + 500)

210 = 0.15(x + 500)

210 = 0.15x + 75

210 - 75 = 0.15x

135 = 0.15x

x = 135 / 0.15

= 900

x = $900

Gwen's income in dollars lat month = $900

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.