errands to run, you ask her, “What do we have to do on the way?” She answers, “I’d like to go to the dry-cleaners in the mall, and then let’s have lunch at the restaurant in the mall. Then we can get dog-food at the pet shop and money at the bank. And then we can go to see the doctor.” “Okay,” you tell her, “let’s say that it takes 20 minutes to drive to the mall and park, and 10 minutes to get the dry cleaning, then 45 minutes for lunch, 10 minutes to get dog food and 10 minutes to get money at the bank. After that we’ll need 20 minutes to drive to the doctor’s clinic. What time is our appointment?” “Our appointment is
Later today, your mom will take you to the doctor’s clinic for a check-up. “When do you think we should leave?” she asks. “Help me decide.” Since she always has errands to run, you ask her, “What do we have to do on the way?” She answers, “I’d like to go to the dry-cleaners in the mall, and then let’s have lunch at the restaurant in the mall. Then we can get dog-food at the pet shop and money at the bank. And then we can go to see the doctor.” “Okay,” you tell her, “let’s say that it takes 20 minutes to drive to the mall and park, and 10 minutes to get the dry cleaning, then 45 minutes for lunch, 10 minutes to get dog food and 10 minutes to get money at the bank. After that we’ll need 20 minutes to drive to the doctor’s clinic. What time is our appointment?” “Our appointment is at 2:00 p.m., so when should we leave?”
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