Answer:

Step-by-step explanation:
4x - 1 < 11
Add 1 on both sides.
4x - 1 + 1 < 11 + 1
4x < 12
Divide both sides by 4.
(4x)/4 < 12/4
x < 3
Answer:
5:9
6:5
7:-6
Step-by-step explanation:
XZ=XY+YZ
JL=JK+KL
use the trigonometric values table or unit circle to calculate the expression
Answer:
y = 7
x = 2/3
Step-by-step explanation:
hope it help
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All percents are out of 100 so start with 15/100 and then simplify
3/20