Hi there!
mistake= step 2..
If you can see, the equation is the opposite so this means that to find the answer, your gonna have to add first.. instead of subtracting..
<em><u>1.Add the terms:</u></em>
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<em><u>2.Simplifly the terms:</u></em>
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<em><u>3.Subtract the terms:</u></em>
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Therefore, the mistake was step 2...
The area of box A is 5x7 or 35
the area of the entire region is 9x9 or 81
probability of A is 35/81
Answer:
13000grams are in 13 kilograms