Inequalities 8.8b

Which of the following situations can be modeled by the equation 12.99+0.3x<0.79x

• Cricket pay as you go service charges a $12.99 startup cost and $0.30 per minute used. Metro just charges $0.79 per minute used with no startup cost. For how many minutes is Metro the better plan?

• Agatha spent $12.99 on a cd and $0.30 on a piece of candy. Her sister Marsha spent $0.79 on a piece of candy. Which sister spent more money?

• Joe Joe's Coffee house charges $12.99 for a refillable mug and $0.30 to fill the mug each time. Joe Joe's also sells disposable mugs of coffee for $0.79 each. How many mugs of coffee would you have to drink to make the refillable mug the better deal?

• eTunes charges $12.99 per month plus $0.30 per song. Music Star charges $0.79 per song. How many monthswould you have to use Music Star to equal the monthly charge of eTunes?

Tags

CCSS.7.EE.B.4B

Which of the following situations could be modeled by the inequality 25-x $\le$  15+x

• Yileiddy has a gift card for $25. She buys a $15 shirt and as much candy as she can buy with the rest of the gift card. How many pieces of candy can she buy?

• The art class has 25 people, and the choir has 15 people how many people must move from art to choir for the choir class to be as big or larger than the art class?

• One ticket line at Adventure Land is 25 people long, and the other is 15 people long. If the line with 25 people is giving 25 tickets per minute and the line with 15 people is giving 24 tickets per minute which line will be done first?

• The bears are winning their basketball game 25 to 15. How many points must the other team score to tie or win the game?

Which of the following situations could be modeled by the equation 8+4x>12+3x?

• Beto bought a family meal with 8 sandwiches and 4 sodas. Edi bought a family meal with 12 sandwiches and 3 sodas. They each paid the same. How much did they spend?

• The chess club currently has 8 members and it's growing at a rate of 4 students per month. The theatre club has 12 students and it's growing at a rate of 3 students per month. After how many months will the chess club have more students than the theatre club?

• Tania bought 8 pairs of shoes and paid $4 in tax. She spent the same as her friend Kathleen, who bought 12 pairs of shoes and paid $3 in tax. How much did each pair of shoes cost?

• The Baby Metal new album has 8 songs that are 4 minutes each. The Black Pink new album has 12 songs that are 3 minutes each. Which album is longer?

Tags

CCSS.7.EE.B.4B

Which of the following situations could be modeled by the equation  $\frac{3}{4}$  +4 $<$  x-10

• Shelly has a 25% off coupon and a 10% off coupon, but they will save her the same amount on her purchase. 

• Three fourths of the animals in the zoo were born in captivity. Of the animals born in the wild , four had babies and ten died. How many animals are in the zoo?

• 75% of the Americans polled agreed that four pets is manageable. All Americans polled disagreed that ten pets is manageable.

• Three fourths of the student body and four teachers voted to keep the school mascot an Eagle. All of the student body except ten (No teachers) voted to change the school colors to black and grey, and got more votes than the first selection. 

Tags

CCSS.7.EE.B.4B

Which of the following situations can be modeled by the inequality  $\frac{1}{2}$  x  $<$  x-10?

• Petsmart has two coupons out: $10 off your purchase or half off your purchase. They only accept one coupon per purchase. For what amount is the $10 off purchase a better deal?

• Genesis bought a dress with a half price discount. the next day she saw it on sale for ten dollars instead. If Genesis still got a better deal, what did the dress cost?

• Ticketmaster sells tickets for half price to members who have paid a membership fee of $10. How many tickets must you buy for the membership fee to be a good deal?

• At Forever21 all dresses are $10 or less. They are offering a half price sale this week. What will the dresses cost after the discount?