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Last year members of a certain technology association consisted of certified engineers from 35 different states, with an average of 15.2 companies per state. Last year the average number of certified engineers at these companies who were members of the association was 30 . Which of the following is closest to the total number of members of the association last year?

Explanation	Calculations	Help
$We translate the counts into the multiplication of the number of states, the average number of companies per state, and the average number of certified engineers per company.$	$N = 35 C = 15.2 E = 30 T o t a l = N \times C \times E$
$Because the answer choices differ by orders of magnitude (powers of 10), we use rough estimation to simplify the multiplication.$	$35 \approx 40 15.2 \approx 15 30 \approx 30$	Theory & Tactics Method Card CALC1-B Click to view full details
$We multiply the approximate values to get the estimated total number of members.$	$40 \times 15 \times 30 = 18000$

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D

Last year members of a certain technology association consisted of certified engineers from 35 different states, with an average of 15.2 companies per state. Last year the average number of certified engineers at these companies who were members of the association was 30 . Which of the following is closest to the total number of members of the association last year?

Explanation	Calculations	Help
$We translate the counts into the multiplication of the number of states, the average number of companies per state, and the average number of certified engineers per company.$	$N = 35 C = 15.2 E = 30 T o t a l = N \times C \times E$
$Because the answer choices differ by orders of magnitude (powers of 10), we use rough estimation to simplify the multiplication.$	$35 \approx 40 15.2 \approx 15 30 \approx 30$	Theory & Tactics Method Card CALC1-B Click to view full details
$We multiply the approximate values to get the estimated total number of members.$	$40 \times 15 \times 30 = 18000$

Scroll horizontally to view all columns

D