Solving Equations and Word Problems

This lesson covers solving two-step equations using real-world examples. It includes problems involving weights, money, ages, app counts, and biking speeds. The lesson emphasizes using tape diagrams and algebraic equations to find solutions, reinforcing the understanding of order of operations and properties of equality.

What is the primary goal of today's lesson?

• To explore geometric shapes

• To learn about historical events

• To solve two-step equations using order of operations

• To understand the history of mathematics

If Juan gained 20 pounds and now weighs 120 pounds, what was his weight last year?

• 100 pounds

• 80 pounds

• 120 pounds

• 140 pounds

How much does Diego weigh if Rashid is 15 pounds heavier and weighed the same as Juan last year?

• 85 pounds

• 105 pounds

• 95 pounds

• 75 pounds

If Cristina has $100 and Marissa has $20 less, how much does Marissa have?

• $120

• $100

• $80

• $60

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

• $40

• $20

• $80

• $60

If Laura is 50 years old and 10 years older than Rihanna, how old is Rihanna?

• 60 years

• 50 years

• 40 years

• 30 years

If Rihanna is twice as old as Madeline and Rihanna is 40, how old is Madeline?

• 30 years

• 40 years

• 20 years

• 10 years

If Carly has 90 apps and this is three times the number of apps Thisis has, how many apps does Thisis have?

• 50 apps

• 20 apps

• 40 apps

• 30 apps

If Braylon has half the number of apps as Thisis, and Thisis has 30 apps, how many apps does Braylon have?

• 25 apps

• 10 apps

• 20 apps

• 15 apps

If Lance's downhill speed is 60 mph and four times his flat road speed, what is his flat road speed?

• 10 mph

• 25 mph

• 15 mph

• 20 mph