Growth and Change Word Problems

The video tutorial covers practice and problem-solving with rational numbers. It includes solving problems related to temperature changes with altitude, plant growth over weeks, calculating bonuses with deductions, carnival game token profits, and weight changes in hedgehogs during hibernation. Each problem is broken down step-by-step, demonstrating mathematical operations like multiplication, division, and the use of fractions.

If an airplane climbs to 11,000 feet with a temperature drop of 1.1°F per 1,000 feet, what is the temperature at that altitude if the ground temperature is 59.7°F?

• 50.6°F

• 49.6°F

• 47.6°F

• 48.6°F

A plant grows 1 1/6 inches per week. How many weeks and days will it take to grow 6 1/6 inches?

• 5 weeks and 1 day

• 5 weeks and 2 days

• 6 weeks

• 5 weeks and 3 days

What is the result of dividing 6 1/6 inches by 1 1/6 inches using the KFC method?

• 5 2/7

• 5 1/7

• 5 4/7

• 5 3/7

Brianna's yearly bonus is $155, but $2.50 is deducted for each customer complaint. What is her bonus if she receives 12 complaints?

• $125

• $115

• $145

• $135

How much money is deducted from Brianna's bonus for 12 complaints if each complaint costs $2.50?

• $35

• $20

• $25

• $30

Marcelo plays a carnival game 6 times, spending 3 tokens per game and winning 7 tokens each time. What is his total profit in tokens?

• 18 tokens

• 30 tokens

• 12 tokens

• 24 tokens

What is the expression for calculating Marcelo's total token profit if he plays 6 games, spending 3 tokens and winning 7 tokens each time?

• 6 x (7 - 3)

• 6 x (3 - 7)

• 6 x 7 - 6 x 3

• 6 x 7 + 6 x 3

What is the change in weight per day for a hedgehog during hibernation if it loses 0.24 ounces over 8 days?

• 0.03 ounces

• 0.04 ounces

• 0.02 ounces

• 0.05 ounces

If a hedgehog loses weight at a rate of 0.03 ounces per day, how much weight will it lose in 115 days?

• 3.25 ounces

• 3.75 ounces

• 3.15 ounces

• 3.45 ounces

If a hedgehog's weight change is consistent, what is the weight change in ounces for 75 days if it loses 2.25 ounces?

• 0.04 ounces per day

• 0.02 ounces per day

• 0.05 ounces per day

• 0.03 ounces per day