Hello! Your answer is 7 degrees.
A set of complementary angles are ones which, when their measurements are added, will equal up to 90 degrees. For example, the complementary angle of a 80 degree angle would be 10 degrees. A supplementary angle also falls in the same category, however it is adding up to 180 degrees. The way I remember which one is which is that <u>c comes first in the alphabet, and 90 degrees comes before 180 degrees.</u>
Applying that knowledge, 83 plus the complementary angle must equal 90. 83 + 7 = 90, therefore, the complementary angle measures 7 degrees.
Hope this helps!
The amount of temperature decreased is :
320 - 280 = 40
The percentage of temperature decreased is :
40 / 320 x 100 % = 12.5 %
The answer is option B. 12.5 %
hope this helps
There are 50 parking spaces because 10×5=50
