noreen ran 4 miles farther than heather. together they ran a distance of 20miles. how far did each girl run

Answer 1

x = how far heather ran in miles

x+4 = how far noreen ran in miles

how far heather ran + how far noreen ran = 20 miles

x + (x+4) = 20

2x + 4 = 20

2x = 16

x =8

Heather ran 8 miles

Noreen ran x + 4 = 8 + 4 = 12 miles