B's boat went 41 cm because 41*3=123
130-123=7
140/15.5 = unit rate
140/15.5 = around 9.03
Average swimming rate: 9.03 meters per second
Answer:
calls first evening = 26
calls second evening = 80
calls third evening = 20
Step-by-step explanation:
Let x = calls third evening
x+6 = calls first evening
4x = calls second evening
x+6 + 4x + x = total calls = 126
Combine like terms
6x+6 = 126
Subtract 6 from each side
6x =120
Divide by 6
6x/6 =120/6
x = 20
x+6 = calls first evening = 20+6 = 26
4x = calls second evening = 4*20 = 80
Let x = calls third evening = 20
The left two................
Since ten inches is only 5/6 of a foot, 3 ft is bigger. Hope this helped.