Okay, so on this type of question, the exterior angle equals the two interior angles added up, so you take 4x+7+6x-9=118 and then solve!
x=12 :)
You can divide the sides to simplify them.
20/100 = 10/50 = 5/25 = 1/5
50 divided by 8 = 6.25
1oz perfume = $6.25
110 divided by 17 = 6.4705
1oz perfume = $6.4705
Therefore the second option is cheaper
Answer:
Step-by-step explanation:
The volume of the cylinder is given by the following formula:
By comparing each variable, height and radius of the cylinder are, respectively:
All the triangles are similar, so the ratio of (long leg)/(short leg) is the same. The long leg of ΔADB is
.. AD = AC -DC = 20 -4
.. AD = 16
Then
.. (long leg)/(short leg) = AD/DB = BD/DC
.. 16/h = h/4
.. h^2 = 64
.. h = 8
Selection D is appropriate.
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You may see this again. The altitude (h) from the right angle in a right triangle is the geometric mean of segments AD and DC. That is,
.. h = √((AD)*(DC))
