Question

Check the iinstructions

Answer 1

Cost of small box of oranges = 7

Cost of small box of oranges = 13

Explanation:

Step 1) Let the cost of small box of oranges = x

Let the cost of small box of oranges = y

Step 2)

Equation 1) Matt sells 3 small boxes and 14 large boxes for Php. 203

3x + 14y = 203 -------------------(I)

Equation 2) Ming sells 11 small boxes and 11 large boxes for Php. 220

11x + 11y = 220 ----------------(II)

Step 3:

Multiply equation (I) by 11 and equation (II) by (-3).

(I)*11 33x + 154y = 2233

(II)*(-3) -33x - 33y = -660 {Now add and x will be eliminated}

121y = 1573

y = 1573/121

y = 13

Substitute y = 13 in equation (II)

11x + 11*13 = 220

11x + 143 = 220

11x = 220 - 143

11x = 77

x = 77/11

x = 7