B ok ok sksk!!!!!!! Ok bye
Orig - .15 * orig = 22.27
.85 * orig = 22.27
Original price = 26.20
Answer:
Step-by-step explanation:
A-b=21
5a-2b=18
We can use substitution here. Take the first equation and solve for A. (Picking this one because it's easy)
a = 21+b
Plugin to the second equation:5(21+b)-2b=18
Simplify: 105 + 5b - 2b = 18
Simplify: 105 + 3b = 18
Subtract both sides: 3b = 18-105
Simplify: 3b = -87
Divide: b = -29
Plug back into the first: a=21+b
a = 21 - 29
a = -8
Option D
Answer:
x ≈ 31°
Step-by-step explanation:
Using the tangent ratio in the right triangle
tan x° = 
= 
, thus
x = 
() ≈ 31° ( to the nearest whole number )
