Answer:
143 miles
Step-by-step explanation:
d = dory
c = carly
first, we find the equation from our question:
11c + c = 156
now solve:
11c + c = 156 (add 11c and c)
12c = 156 (divide both sides by 12)
c = 13
since dory bike 11 times that, just multiply 11 and 13 to get the answer:
11 • 13 = 143
dory biked 143 miles
to check:
c +d = 156
13 + 143 = 156
156 = 156 ✅
