Equation and Inequality Review

Equation and Inequality Review

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Multiple Choice

4x +3 = 15

• 5

• 3

• 6

• 2

Multiple Choice

10x -7 = 4x + 5

• 12

• 10

• 4

• 2

Multiple Choice

Betsy wants to save $4000 for a trip she wants to take this summer. She currently has $500 in her bank account. Betsy earns $100 per day working. Which equation can she use to determine the number of days, d, she needs to work to reach her goal of $4000?

• 500-100x = 4000

• 500x+100 = 4000

• 500+100x = 4000

• 500x-100 = 4000

Multiple Choice

Two lawn care companies are competing for a landscaping contract. Company A charges a $150 monthly consulting fee plus $20 per square foot of landscaping. Company B charges a $80 monthly consulting fee plus $25 per square foot of landscaping. For how many square feet of landscaping, x, will the two companies charge the same amount in one month?

• 150x +20 = 80x+25

• 150 +25x = 80+20x

• 150 +20x = 80+25x

• 150x +25 = 80x+20

Multiple Choice

4x+ 40 < 12

• x<7

• x>7

• x<-7

• x>-7

Multiple Choice

April is getting her carpet cleaned. Company A charges a $150 monthly consulting fee plus $20 per square foot of carpet. Company B charges a $80 monthly consulting fee plus $25 per square foot of carpet Which inequality should she use to figure this out if x represents the number of rooms she gets cleaned if company A is more expensive?

• $150+20x\ \ge80+25x$

• 
  

  $150+20x\le80+25x$

• 150 +20x < 80+25x

• 150 +20x > 80+25x