Answer:
17.5
Step-by-step explanation:
3a = 15
a =5 .
3 x 5 = 15
2b = 5
15 + 5 = 20
----------------------------
b = 2.5
2.5 ( B ) + 15 ( 3a ) = 17.5
Yes, because a negative number multiply by itself it is positive.
Answer:
none of the above
Step-by-step explanation:
Vertical angles are opposite angles made by intersecting lines
a and b are not vertical angles no
Complementary angles - two angles that add to 90 degrees
b is 90 degrees by itself no
Supplementary angles - two angles that add to 180 ( would make a straight line)
a and b do not form a straight line they are not vertical angles - no
Step-by-step explanation:
this is your answer.............
1/3 if you have a positive and a negative, it will turn into a positive so 11/12-7/12
