Algebra/Math Helps?

Question

Pls show work too, because i need to learn how to solve it too thx* =)

these problems are about triangles.
* means degree

1. One of two complementary angles measure 30* more than 3 times the other. Find the measure of each of the angles.

Answer 1

complementary angles are angles that add to 90 degrees.

(3x+30)+x=90
4x+30=90
4x=90-30
4x=60
x=60/4
x=15
90-15=75
the angles are 15 and 75

Answer 2

By definition, complementary angles add up to 90*. Set the second angle equal to x. That angle plus 3 times itself then equals 4x. Then, 4x + 30* = 90*. Get x alone. Remember, what you do to one side of the equation has to be done to the other side as well. (A trick: I was taught that its like a mother in the grocery store with 2 cranky children - if one kid gets candy, the other kid has to get candy too. That makes it easier to remember for some people.) Solve as follows.

4x + 30 = 90
-30 -30
4x = 60
/4 /4
x = 15

Then, the second angle equals 15. The first angle is equal to 3x + 30, so 3 x 15 = 45, and 45 + 30 = 75.

To check, complementary angles add up to 90*. 75* + 15* = 90*.

Hope that helps. Good luck.

Answer 3

Complimentary angles have a sum of 90 deg.
So if one angle is x, the other angle is 3x+30, and their sum is 90. After the smoke clears from the math, x=15.

Answer 4

All I can say is that complementary angles equall 180*

Answer 5

x = one angle's measure
So the complement is 90 - x degrees.
But your statement also says the complement is 3x + 30 degrees.

So solve 90 - x = 3x + 30.

Answer 6

i dont want to do your algebra homework for you do it ;yourslef

Answer 7

nah! dont feel like it!