Question

$39 to $65.

1. the value of an autographed

what is the percent increase in value o

1. a zookeeper predicted that the weight of a newborn lion would be 2.8 pounds. when the zoos lion gave birth, the newborn weighed 3.5 pounds. what is the zookeepers percent error? round to the nearest percent.
2. a body builder consumed 4,400 calories yesterday. today, he consumed 3,600 calories. what is the percent decrease in the number of calories consumed? round to the nearest percent.

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Explanation:

Step1 (Problem 3): Find error amount

$3.5 - 2.8 = 0.7$

Step2 (Problem 3): Calculate percent error

$\frac{0.7}{2.8} \times 100\% = 25\%$

Step1 (Problem 4): Find calorie decrease

$4400 - 3600 = 800$

Step2 (Problem 4): Calculate percent decrease

$\frac{800}{4400} \times 100\% \approx 18\%$

Answer:

Problem 3: 25%
Problem 4: 18%