Bill and Mary and went to the viola bakery bill bought five danishes and eight filled donuts for 1685 Mary and bought seven of each for 1687 what is the price of each type of pastry

Answer 1

$1.60 for donuts, 81 cents for danish

5D + 8N = 1685

7D & 7N = 1687

divide by 7 to get

D + N = 1687/7 = 241

D = 241-N

5(241-N) + 8N = 1685

1205 - 5N + 8N = 1685

3N = 480

N = 160 = $1.60 for a donut

D = 241-160= 81 cents for a danish