Real-World Applications of Ratios and Rates

The video tutorial covers problem-solving with rational numbers, including temperature changes with altitude, plant growth over weeks, calculating bonuses with deductions, carnival game profits, and weight changes during hibernation. Each problem is solved step-by-step, demonstrating mathematical operations like multiplication, division, and the use of fractions.

If an airplane climbs to 11,000 feet and the temperature drops 1.1 degrees for every 1,000 feet, what is the temperature at 11,000 feet if it was 59.7 degrees on the ground?

• 50.6 degrees

• 48.6 degrees

• 49.6 degrees

• 47.6 degrees

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

• 5 weeks and 2 days

• 5 weeks and 1 day

• 6 weeks

• 6 weeks and 1 day

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

• 6 and 2/7

• 5 and 2/7

• 5 and 1/7

• 6 and 1/7

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

• $135

• $145

If Brianna receives 8 complaints, how much is deducted from her bonus?

• $30

• $25

• $20

• $15

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?

• 36 tokens

• 30 tokens

• 24 tokens

• 18 tokens

How many tokens does Marcelo win in total if he plays 6 games and wins 7 tokens each time?

• 42 tokens

• 48 tokens

• 36 tokens

• 30 tokens

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

• 0.02 ounces

• 0.03 ounces

• 0.04 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?

• 4.05 ounces

• 3.75 ounces

• 3.45 ounces

• 3.15 ounces

What is the total weight change for a hedgehog after 75 days of hibernation if it loses 0.03 ounces per day?

• 2.45 ounces

• 2.35 ounces

• 2.25 ounces

• 2.15 ounces