One can take the price of the item before the discount is applied and subtract that from the percentage off and get the cost of the item.
I find this is the most effective way.
another method could be if one turned the percentage into a decimal it could be subtracted from the cost of the item.
Triangle XWV is an equilateral triangle(every angle is 60). So both angle V's are vertical angles, which means the are the same(60). Y is 90. So once you have 60 and 90 in triangle YZV, you know the last angle(Z) is 30. But since angle Z is 30 and angle X is 60, they are complementary and not supplementary(which adds up to 180)
Answer:
p=1
Step-by-step explanation:
Answer: right isosceles ? i think
Step-by-step explanation:
Step-by-step explanation:
(x + y , x - y) = (4 , 2)
x+y=4 ------(1)
x-y=2 ------(2)
_____ (adding two equation)
2x=6
x=3
From equation 1
3+y=4
y=1
