the equation should be: how many people * daily trash * 365 days in a year = kilograms of trash was thrown away in the United States in 2013
so enter your givens and it's now (we'll use 4.5 × 10–1 kg * 3.2 × 106 * 365=14.4x10^5x365 5256x10^5 525600000
The correct answer is:
52,596,000
Explanation :
We multiply 4.5×10⁻¹ × 3.2×10⁶. To do this, we can use the commutative property and switch the factors around:
4.5(3.2)(10⁻¹)(10⁶)
Using our powers of exponents, we know that multiplying powers of the same base means we add exponents; this gives us
4.5(3.2)(10⁵)
This gives us
14.4(10⁵) = 144,000.
This is the amount thrown away per day. There are 365.25 days per year; this gives us
144000(365.25) = 52,596,000
In 2013, approximately 525.6 million kilograms of trash were thrown away in the United States. This was calculated by multiplying the average trash per person per day by the number of people and the number of days in a year. Specifically, using values of 0.45 kg per person per day, 3.2 million people, and 365 days yielded this figure.
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