1/2(5x + 12) = 2x - 3
5/2 x + 6 = 2x - 3
5/2 x - 2x = -3 - 6 = -9
5x = 2 x -9 = -18
x = -18/5
(me brushing my teeth) and (you going to school)
Supplementary is when two angles together add up to 180°, and complimentary is when they add up to 90°.
The first angles together make 90°, so they are complimentary, and they are next to each other so they are adjacent, so it is B.
The second angles are 60°, and they ardent vertical so they are none of these. The third angles add up to 180° so they are supplementary, so it is D.
The fourth angles are a right angle, and you can see by the little square at the point. And right angles are always 90°, so all you have to do is 90-55.1, and that gives you 34.9, so x=34.9, so it is A.
The fifth angles together make a straight line, and a straight line is 180°, so 180-72=108, so x=108, so it is D.
Answer:
C
Step-by-step explanation:
y + 2x + 10 = 4x + 5
y = 4x - 2x + 5 - 10
y = 2x - 5
Answer- C
The function f(x) shows how much Kate pays for the data service for downloading x songs in a month. So f(14) will represent the amount that Kate will have to pay for downloading 14 songs in a month.
f(x) = 2.50x + 11.50
Replacing x by 14, we get:
f(14) = 2.50(14) + 11.50 = 46.5
Thus, Kate will have to pay $ 46.5 for downloading 14 songs in a month
