http://math.about.com Name__________________________________ Worksheet # 5: Solve the Distance (d), Rate(r)/Speed and Time(t) Problems Remember to read the problems carefully and set up a diagram or chart to help you set up the equations. Remember to use the right formula: d = rt or r =
d
d
or t =
t
r 1 2 d
r t
1. A jet took off and headed north for four hours before another jet took off heading south. The second jet flew at 428 mph for two hours. At this time, the two jets were 2422 mi. apart from each other. d
r t
st
1 Jet What was the first jet's average speed? nd
2 Jet 2. Pam drove to the mall and back. It took one hour longer to go there than it did to come back home. The average speed she was traveling on the trip there was 32 mph. The average speed on the way back was 40 mph. d
r t
Pam there How many hours did the trip there take? Pam back 3. Jenna left the grocery store one hour before Alyssa. Jenna headed East and Alyssa headed west. Alyssa was traveling at 25 mph for five hours at which time Jenna and Alyssa were 275 miles apart. d
r t
Jenna What was Jenna's average speed? Alyssa http://math.about.com http://math.about.com Name__________________________________ Worksheet # 5 ANSWERS: Solve the Distance (d), Rate(r)/Speed and Time(t) Problems Remember to read the problems carefully and set up a diagram or chart to help you set up the equations. Remember to use the right formula: d = rt or r =
d
d
or t =
t
r 1 2 d
r t
1. A jet took off and headed north for four hours before another jet took off heading south. The second jet flew at 428 mph for two hours. At this time, the two jets were 2422 mi. apart from each other. d
r t
st
1 Jet What was the first jet's average speed? nd
2 Jet 261 mph 2. Pam drove to the mall and back. It took one hour longer to go there than it did to come back home. The average speed she was traveling on the trip there was 32 mph. The average speed on the way back was 40 mph. d
r t
Pam there How many hours did the trip there take? Pam back 5 hours 3. Jenna left the grocery store one hour before Alyssa. Jenna headed East and Alyssa headed west. Alyssa was traveling at 25 mph for five hours at which time Jenna and Alyssa were 275 miles apart. d
r t
Jenna What was Jenna's average speed? 25 mph Alyssa http://math.about.com