Bellwork 10/19

What number set is correctly defined by the shaded region?

• Irrational
• Complex
• Counting
• Integers

As of 2013, the top three populated countries are China,
India and the United States. China is the most populated country with more than 1.361x10⁹ people. Write this number in standard
notation.

• 1,361,000,000
• 1,361,000
• 1,361
• 1.361x10^-9

Which of the following is not a rational number?

• √8
• √25
• -10
• 2.341

Which of the following numbers is greater than −1.075?

• -2.03
• -1.90
• -1.06
• -1.26

Roxy and Randy are selling pancake breakfast plates to raise money for a class trip. Roxy is selling plates for $5.00 and has already raised $175. Randy is selling plates for $3.50 and has already raised $250. Which equation can be used to find p, the number of plates that Roxy and Randy must sell so that the total amount raised is the same for both Roxy and Randy?

• 5p + 250 = 3.50p + 175
• 250p + 3.50 = 175p + 5
• 3.50p + 250 = 5p + 175
• Not here

Mike wants to borrow $11,500 for home improvements. He was considering a 3-year loan option represented by A = 11,500(1 + 0.029)³ or a 2-year loan option represented by A = 11,500(1 + 0.043)² where A in both equations represents the total cost of repaying the loan. Which loan option should Mike choose in order to repay the least amount of money?

• The 3-year loan total repay amount is $12,500.50 and the 2-year loan total repay amount is $12,489.00. Mike should choose the 2-year loan because he will repay less money.
• The 3-year loan total repay amount is $35,500.50 and the 2-year loan total repay amount is $23,989. Mike should choose the 2-year loan because he will repay less money.
• The 3-year loan total repay amount is $11,833.50 and the 2-year loan total repay amount is $11,994.50. Mike should choose the 3-year loan because he will repay less money.
• The 3-year loan total repay amount is $12,529.79 and the 2-year loan total repay amount is $12,510.26. Mike should choose the 2-year loan because he will repay less money.

Which group of numbers could be placed in Section B?

• -7/8, -2.5, -4
• 7/8, 2.5, 4
• –7, 8, –4
• Not here