Answer:
Getting through ratio method
100-20=80 percent have to pay
18:80
<em>x</em>:100
cross multiply
80 x <em>x=1</em>8 x 100
80x=1800
x=1800/80
x=22.5
So the original price was $22.50
Step-by-step explanation:
All you have to do is convert the boxed ones into positive because anything between |x| is always positive! It can’t be negative. That’s the rule.
Answer:

Step-by-step explanation:
<u>Solution 1:</u>
Recall that in an isosceles triangle, the two angles adjacent to the congruent sides are equal. Since the sum of interior angles in a triangle add up to
, we set up the following equation:
.
Solving, we get:
.
<u>Solution 2:</u>
The Law of Sines states:
, for any triangle.
We can use this to set up a proportion with the information given:
.
Solving, we get:
.
Answer:
where the two legs meet at 90%.is there any options.