Comparative Weight and Age Problems

The video tutorial covers mathematical modeling through various examples, including weight, money, and age problems. It introduces the use of tape diagrams and equations to solve these problems, emphasizing the importance of setting up variables and understanding relationships between them. The tutorial guides students through the process of solving each problem step-by-step, reinforcing the concepts of addition, subtraction, multiplication, and division in the context of real-world scenarios.

What is the relationship between Juan's weight last year and this year?

• Juan lost 20 pounds this year.

• Juan gained 15 pounds this year.

• Juan gained 20 pounds this year.

• Juan's weight remained the same.

How is Rashad's weight related to Diego's weight?

• Rashad weighs the same as Diego.

• Rashad weighs 20 pounds more than Diego.

• Rashad weighs 10 pounds more than Diego.

• Rashad weighs 15 pounds more than Diego.

What equation represents Rashad's weight in terms of Diego's weight?

• D + 15 + 20 = 120

• D + 35 = 120

• D + 20 = 120

• D + 15 = 120

What is the total weight of Rashad if Diego weighs 85 pounds?

• 110 pounds

• 105 pounds

• 100 pounds

• 115 pounds

How much more money does Kristina have compared to Marissa?

• $30

• $20

• $10

• $40

If Marissa has $80, how much money does Frank have?

• $50

• $40

• $30

• $20

What is the relationship between Rihanna's and Madeline's ages?

• Rihanna is twice as old as Madeline.

• Rihanna is the same age as Madeline.

• Rihanna is half the age of Madeline.

• Rihanna is three times as old as Madeline.

If Laura is 50 years old, how old is Rihanna?

• 50 years

• 40 years

• 30 years

• 60 years

What equation can be used to find Madeline's age if Rihanna's age is known?

• 2M = R

• M + 10 = R

• R + 10 = M

• M = R - 10

If Rihanna is 40 years old, how old is Madeline?

• 30 years

• 25 years

• 20 years

• 15 years