Question
upstudy study bank question image url

Model with Mathematics Mr. Chung teaches a 1 -hour
math class. Six minutes are used for attendance and turning in home
Then he teaches for 18 minutes. For the rest of the class, the student
work on problems. For each problem, the students spend 3 minutes
working on it, then Mr. Chung takes 6 minutes to explain it. After th
completes 4 problems, all of the class time is used up. Write and eva
an expression to show this.

Ask by Campbell Cox. in the United States
Jan 13,2025

Upstudy AI Solution

Tutor-Verified Answer

Answer

Total time = 6 minutes (attendance) + 18 minutes (teaching) + 4 × (3 minutes + 6 minutes) = 60 minutes

Solution

Sign in to Unlock Answers for Free!

A Learning Platform Trusted by Millions of Real Students and Teachers.

star-icon Unlock

Answered by UpStudy AI and reviewed by a Professional Tutor

Extra Insights

Mr. Chung has a total of 60 minutes for his class. After taking 6 minutes for attendance and 18 minutes of teaching, he is left with 60 - 6 - 18 = 36 minutes. The students tackle 4 problems, spending 3 minutes on each problem, totaling 4 x 3 = 12 minutes. Mr. Chung then explains each problem for 6 minutes, adding up to 4 x 6 = 24 minutes. When you sum those together—12 minutes working and 24 minutes explaining—you get 12 + 24 = 36 minutes, which perfectly utilizes the remaining class time!
To represent this as an expression:
Let “x” be the number of problems. The time spent would then be: 3x (student work) + 6x (Mr. Chung’s explanations) = 36 minutes. Hence, the expression is 9x = 36, leading us to x = 4, confirming that the students worked on 4 problems.

Try Premium now!
Try Premium and ask Thoth AI unlimited math questions now!
Maybe later Go Premium
Study can be a real struggle
Why not UpStudy it?
Select your plan below
Premium

You can enjoy

Start now
  • Step-by-step explanations
  • 24/7 expert live tutors
  • Unlimited number of questions
  • No interruptions
  • Full access to Answer and Solution
  • Full Access to PDF Chat, UpStudy Chat, Browsing Chat
Basic

Totally free but limited

  • Limited Solution
Welcome to UpStudy!
Please sign in to continue the Thoth AI Chat journey
Continue with Email
Or continue with
By clicking “Sign in”, you agree to our Terms of Use & Privacy Policy