Given:
In 
and 
.
To find:
The 
.
Solution:
In 
,
It means the triangle QRS is an isosceles triangle. We know that the base angles of an isosceles triangle are congruent and their measures are equal.
[Base angles of isosceles triangle QRS]
...(i)
In ,
[Using (i)]
Divide both sides by 2.
Therefore, the is 33 degrees.
Answer:
x = -7
x = 4
Step-by-step explanation:
Answer: the amount by which her lunch account would have been impacted is $45
Step-by-step explanation:
Each day Valerie charges her lunch account for her lunch. If the cost of lunch is $3 then, it means that Valerie charges the lunch account with $3 daily. It means that in x days, she would have charged her lunch account with 3×x = $3x
If she charged her account for a period of 15 days, it means that x = 15. Therefore, the amount by which her lunch account would have been impacted is 3×15 = $45
