Holiday Break Extra Credit 2

Norah has never lost a tooth, but she will receive $0.75 from the tooth fairy each time she loses a tooth. Kate has $1.25 from the tooth fairy, and she gets $0.25 each time she loses a tooth. Which inequality could be used to find, x, the number of teeth that each girl would have to lose for Norah to have at least as much money from the tooth fairy as Kate?

• 0.75x ≥ 1.25 + 0.25x

• 0.75x ≥ 1.25 – 0.25x

• 0.75x ≤ 1.25 + 0.25

• 0.75x > 1.25 + 0.25x

The rectangles shown have the same perimeter. Which of the following is the value of x?

• 15

• 12

• −2.64

• 3.25

Joe’s Catering Company charges a $45 set-up fee plus $12.50 per person. Jimmy’s catering company charges a $75 set up fee plus $7.50 per person. Which inequality could be used to determine x, the number of people for which Joe’s Catering Company would be less expensive than Jimmy’s catering company?

• 45 + 12.5x > 75 + 7.5x

• 45 + 12.5x ≥ 75 + 7.5x

• 45 + 12.5x < 75 + 7.5x

• 45 + 12.5x ≤ 75 + 7.5x

• A

• B

• C

• D

• Pentagon M'N'P'Q'R' is larger than pentagon MNPQR, because the scale factor is greater than 1.

• Pentagon M'N'P'Q'R' is smaller than pentagon MNPQR, because the scale factor is less than 1.

• Pentagon M'N'P'Q'R' is smaller than pentagon MNPQR, because the scale factor is greater than 1.

• Pentagon M'N'P'Q'R' is larger than pentagon MNPQR, because the scale factor is less than 1.

• 18 units

• 6 units

• 13 units

• 9 units

Tags

CCSS.6.G.A.3

CCSS.6.NS.C.8

• F

• G

• H

• J

• F

• G

• H

• J

Tags

CCSS.HSG.SRT.A.2

CCSS.HSG.SRT.A.3

CCSS.HSG.SRT.B.5

• F

• G

• H

• J

Solve the equation:
7x - 4 = 3 + 8x

• x = 7
• x = -7
• x = 2/7
• x = 11

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7