Defining Variables & Creating Equations w. VOBS

Defining Variables & Creating Equations w. VOBS

Multiple Choice

Bruno Mars is playing on a street

corner & earns $6 for each song he

plays. Nick Jonas is playing at a local

coffee shop & earns $8 for each song

he plays, but he also had to pay a

$160 fee to play there.

After how many songs

will they have earned the same amount of money?

What is the QUESTION in this word problem?

• Bruno Mars is playing on a street

  corner & earns $6 for each song he

  plays.

• Nick Jonas is playing at a local

  coffee shop & earns $8 for each song

  he plays, but he also had to pay a

  $160 fee to play there.

• After how many songs

  will they have earned the same amount of money?

Multiple Choice

Using the question

After how many songs

will they have earned the same amount of money?

How would you define the variable?

• x = the number of songs

• x = the amount of money

Multiple Choice

Katy Perry currently has $180 dollars

and is spending $6 per day.

Lady Gaga has no money but is

earning $8 each day.

After how many days will they have

the same amount of money?

What is the QUESTION in this word problem

• After how many days will they have

  the same amount of money?

• Katy Perry currently has $180 dollars

  and is spending $6 per day.

• Lady Gaga has no money but is

  earning $8 each day.

Multiple Choice

Using the question

After how many days will they have the same amount of money?

How would you define your variable?

• x = the amount of money

• x = the number of days

Multiple Choice

Luke Bryan currently has 160 Twitter

followers but is losing them at a rate

of 6 followers each day.

Kenny Chesney just started his Twitter

account and has zero followers but is

gaining 8 followers each day.

After how many days will they have the same amount of followers?

What is the QUESTION in this word problem

• Luke Bryan currently has 160 Twitter

  followers but is losing them at a rate

  of 6 followers each day.

• Kenny Chesney just started his Twitter

  account and has zero followers but is

  gaining 8 followers each day.

• After how many days will they have the same amount of followers?

• There is no question

Multiple Choice

Using the question

After how many days will they have the same amount of followers?

How would you define your variable?

• x = the number of days

• x = the number of followers

Multiple Choice

Luke Bryan currently has 160 Twitter

followers but is losing them at a rate

of 6 followers each day.

Kenny Chesney just started his Twitter

account and has zero followers but is

gaining 8 followers each day.

After how many days will they have the same amount of followers?

x = the number of days

Which expression represents Lukes story in this problem?

• 160-6x

• 160+6x

• 160x-6

• 160x+6

Multiple Choice

Luke Bryan currently has 160 Twitter

followers but is losing them at a rate

of 6 followers each day.

Kenny Chesney just started his Twitter

account and has zero followers but is

gaining 8 followers each day.

After how many days will they have the same amount of followers?

x = the number of days

Write an expression for Kennys story in this problem

• -8x

• 8x

Multiple Choice

Luke Bryan currently has 160 Twitter

followers but is losing them at a rate

of 6 followers each day.

Kenny Chesney just started his Twitter

account and has zero followers but is

gaining 8 followers each day.

After how many days will they have the same amount of followers?

Put it all together!

What would be the equation for this problem

• 160-6x=-8x

• 160x-6=8x

• 160-6x=8x

• 160+6x=8x