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In January, the depth of a lake was 900 feet. In August, the depth of the lake was 810 feet. What is the percentage decrease of the depth of the lake from January to August? OA. 90% OB. 10% Oc. 11% OD.
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In January, the depth of a lake was 900 feet. In August, the depth of the lake was 810 feet. What is the percentage decrease of the depth of the lake from January to August? OA. 90% OB. 10% Oc. 11% OD. 12%​

User Oluwatobi Omotayo
by
4.5k points

2 Answers

5 votes
January. 900ft. 100%
August. 810ft. X%
X=810•100/900
X=90%
100-90=10%
Percentage decrease is 10%
Correct answer is 10%
User Mahju
by
4.4k points
2 votes
OA because 900 x 0.9 = 810
User Draz
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4.0k points
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