84 is divided into 7 84/7 =12
and it is added to
9 divided into 3 9/3 =3
12+3=15
Answer is D.
Use that as the best solution for your question. It is tested and works better.
5/17 means 5 parts of 17
17-5=12
So if 5/17 is shaded, 12/17 is not.
<em>Answer: 12/17</em>
Let w be the width
Then the length is 2w - 2
We also know that the perimeter is 62 cm. The perimeter is the distance around the rectangle, or 2w + 2(2w - 2).
So, 2w + 2(2w - 2) = 62
2w + 4w - 4 = 62
6w = 66
w = 11
So, the length is 2w - 2 = 2(11) - 2 = 22 - 2 = 20
Length = 20 cm
Width = 11 cm
The probability that a plastic blue marble is chosen is 1/5