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The Keatings have several bird feeders in their yard. They started with a 10.5-pound bag of birdseed. After 2 months, 12 ounces remained. What is the percent of change in the amount of birdseed after two months? Round your answer to the nearest tenth of a percent if necessary.

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boffeemadrid

Answer:

[tex]92.9\%[/tex]

Step-by-step explanation:

Initial amount of birdseed = 10.5 pounds

Final amount of birdseed = 12 ounces

[tex]1\ \text{ounce}=\dfrac{1}{16}\ \text{pounds}[/tex]

[tex]12\ \text{ounces}=\dfrac{12}{16}=0.75\ \text{pounds}[/tex]

Percentage change in the amount of birdseed is

[tex]\dfrac{\text{Initial-Final}}{\text{Initial}}\times 100\%=\dfrac{10.5-0.75}{10.5}\times 100\%\\ =92.9\%[/tex]

The percentage of birdseed that changed is [tex]92.9\%[/tex]

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