Last one should be less than 3/4
Answer:
Carlos has practiced piano for 
hours.
Carlos needs to practice 
hours.
Step-by-step explanation:
We have been given that Carlos wants to practice piano 2 hours each day. He practices piano for 3/4 hour before school and 7/10 hour when he gets home.
First of all, we will find piano practiced before school and after school by adding both amounts as:
Make a common denominator:
Add numerators:
Therefore, Carlos has practiced piano for hours.
Now, we will subtract from 2 find number of hours Carlos needs to practice to reach his goal.
Therefore, Carlos needs to practice hours before going to bed in order to meet his goal.
The error that the student made was that he forgot to square.
<h3>How to Convert From Square Meter to Square Feet?</h3>
The conversion rate of converting meter to feet (linear measurement) is given as:
1 meter = 3.28 feet.
The measures given is in area, therefore, we would need to square when doing our conversion. To convert 3.5 square meter to square feet, do the following:
3.5 m² × (3.28 ft/1 m)² (this is where the student made an error by omitting or forgetting to square)
= 3.5 × 10.8
= 37.8 square feet
Therefore, we can conclude that the error that the student made was that he forgot to square.
Learn more about Converting From Square Meter to Square Feet on:
brainly.com/question/17064816
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They are called breed:different
