Kristen and Julia went skating. Julia skated 30 minutes longer than Kristen. If Julia skated for 55 minutes, write and solve an equation to find how long Kristen skated
Let j be the number of minutes Julia skates and k be the number of minutes Kristen skated. We have 2 equations:
(1) j = k + 30
(2) j = 55
Plug (2) into (1)
j = 55 + 30
j = 85 minutes, or 1 hour and 25 minutes
Let j be the number of minutes Julia skates and k be the number of minutes Kristen skated. We have 2 equations:
(1) j = k + 30
(2) j = 55
Plug (2) into (1)
j = 55 + 30
j = 85 minutes, or 1 hour and 25 minutes