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7.5 S KM & PP 2
Word Problem Basics
• IDENTIFY your VARIABLES
• Write a COMPLETE SYSTEM
• Algebraically SOLVE the SYSTEM
• CLEARLY ANSWER the question(s) in WORDS
• REALITY CHECK ? Does your answer make sense?
7.5 S KM & PP 6
Take the Train!
A green train traveling at 42 mph
leaves the Roseville station
heading towards San Francisco.
Two hours later a red train, on a
parallel track, traveling at 70 mph
leaves Roseville heading towards
San Francisco. In how many hours
will the red train overtake the
green train?
7.5 S KM & PP 8
• IDENTIFY your VARIABLES
• Write a COMPLETE SYSTEM
• Algebraically SOLVE the SYSTEM
• CLEARLY ANSWER the question(s) in WORDS
• REALITY CHECK ? Does your answer make sense?
Word Problem Basics
7.5 S KM & PP 10
• IDENTIFY your VARIABLES
• Write a COMPLETE SYSTEM
• Algebraically SOLVE the SYSTEM
• CLEARLY ANSWER the question(s) in WORDS
• REALITY CHECK ? Does your answer make sense?
Word Problem Basics
7.5 S KM & PP 12
• IDENTIFY your VARIABLES
• Write a COMPLETE SYSTEM
• Algebraically SOLVE the SYSTEM
• CLEARLY ANSWER the question(s) in WORDS
• REALITY CHECK ? Does your answer make sense?
Word Problem Basics
7.5 S KM & PP 14
• IDENTIFY your VARIABLES
• Write a COMPLETE SYSTEM
• Algebraically SOLVE the SYSTEM
• CLEARLY ANSWER the question(s) in WORDS
• REALITY CHECK ? Does your answer make sense?
Word Problem Basics
7.5 S KM & PP 15
Take the Train!
A green train traveling at 52 mph
leaves the Roseville station
heading towards San Francisco.
Two hours later a red train, on a
parallel track, traveling at 70 mph
leaves Roseville heading towards
San Francisco. In how many hours
will the red train overtake the
green train?The red train will overtake the green
train in 3 hours.
7.5 S KM & PP 16
• IDENTIFY your VARIABLES
• Write a COMPLETE SYSTEM
• Algebraically SOLVE the SYSTEM
• CLEARLY ANSWER the question(s) in WORDS
• REALITY CHECK ? Does your answer make sense?
Word Problem Basics
7.5 S KM & PP 17
Police!
Two police cars leave Roseville at
the same time, heading in
opposite directions. The first
police car is traveling at 25 mph
and the other police car is
traveling at 43 mph. In how many
hours will they be 136 miles apart?
7.5 S KM & PP 22
Two police cars leave Roseville at
the same time, heading in
opposite directions. The first
police car is traveling at 25 mph
and the other police car is
traveling at 43 mph. In how many
hours will they be 136 miles apart?
Clearly answer the Question in Words
In 2 hours the cars will be 136 miles
apart.
7.5 S KM & PP 23
• IDENTIFY your VARIABLES
• Write a COMPLETE SYSTEM
• Algebraically SOLVE the SYSTEM
• CLEARLY ANSWER the question(s) in WORDS
• REALITY CHECK ? Does your answer make sense?
Word Problem Basics
7.5 S KM & PP 24
Chickens!
At the same time, two chickens, 7
miles apart, head towards each
other.. The first chicken is
traveling at 5 mph and the other
chicken is traveling at 3 mph. In
how many hours will they meet?
7.5 S KM & PP 29
At the same time two chickens, 7
miles apart, head towards each
other.. The first chicken is
traveling at 5 mph and the other
chicken is traveling at 3 mph. In
how many hours will they meet? The chickens will
meet in 7/8 hour
Clearly answer the Question in Words
7.5 S KM & PP 30
• IDENTIFY your VARIABLES
• Write a COMPLETE SYSTEM
• Algebraically SOLVE the SYSTEM
• CLEARLY ANSWER the question(s) in WORDS
• REALITY CHECK ? Does your answer make sense?
Word Problem Basics
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