Week 29 Practice Problems

Mathematical Equivalence

ON

Mathematical Equivalence

ON

• -3.9

• 4

• -4.01

• -4

• 4.01

5 barrels catch rainwater in the schoolyard. Four barrels are the same size, and the fifth barrel holds 10 liters of water. Combined, the 5 barrels can hold at least 200 liters of water.

Write an inequality to represent the situation. Use x for your variable.

Mathematical Equivalence

ON

Roger and Novak are having a hot dog eating contest. Novak has consumed 7 hot dogs and Roger has consumed 8 hot dogs. From that point, Roger eats 3 hot dogs each minute while Novak eats 4 hot dogs per minute. Write an inequality to represent how many minutes, m, it will take Novak to eat as many or more hot dogs than Roger.

• 
• 
• 
• 

Which is the solution of 
-6a ≥ -36

• a ≥ 6
• -6 ≥ a
• a ≤ 6
• 6 ≤ a

Which inequality is graphed on the number line?

• t > 9

• t < 0

• t < 6

• t > 6