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To get ready for school, Traci spent 
(1)/(20) of an hour getting dressed and 
(1)/(10) of an hour doing her hair. What is the total amount of time she spent getting ready?
Give your answer in simplest form.

To get ready for school, Traci spent 120 \frac{1}{20} of an hour getting dressed and 110 \frac{1}{10} of an hour doing her hair. What is the total amount of time she spent getting ready?\newlineGive your answer in simplest form.

Full solution

Q. To get ready for school, Traci spent 120 \frac{1}{20} of an hour getting dressed and 110 \frac{1}{10} of an hour doing her hair. What is the total amount of time she spent getting ready?\newlineGive your answer in simplest form.
  1. Calculate time spent dressing: Calculate the time Traci spent getting dressed.\newline(120)(\frac{1}{20}) of an hour = 1 hour 20\frac{1 \text{ hour }}{20} = 0.050.05 hour
  2. Calculate time doing hair: Calculate the time Traci spent doing her hair.\newline(1/10)(1/10) of an hour = 11 hour / 1010 = 0.10.1 hour
  3. Find total time getting ready: Add the time spent getting dressed and the time spent doing her hair to find the total time spent getting ready.\newlineTotal time = 0.050.05 hour + 0.10.1 hour = 0.150.15 hour
  4. Convert total time to minutes: Convert the total time spent into minutes, since the answer should be in simplest form and typically time spent in such activities is expressed in minutes.\newline0.150.15 hour * 6060 minutes/hour == 99 minutes

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Posted 8 months ago