70x + 90y = 2220
Step-by-step explanation:
The cost for style A = $90
The cost of style B = $70
let x = number of style B shoes
let y = number of style A shoes
Total amount spent on shoes = $2220
The relationship between the amount and style of shoe bought:
The cost for style A (number of style A) + The cost of style B (number of style B) = Total amount spent on shoes
90(y) + 70(x) = 2220
90y + 70x = 2220
Linear equation in standard form is given as:
Rearranging the linear equation we got in standard form becomes: