A = 80/2 = 40
b = 100/2 = 50
d = 180 - (a+b)
d = 180 - (40+50)
d = 180 - 90
d = 90
Answer:
x = -8
Step-by-step explanation:
these angles are vertical, therefore they are equal
x + 78 = 70
x = -8
Answer:
the answer is 5
Step-by-step explanation:
Answer: 3/8
Step-by-step explanation:
When you subtract fractions, you want them to have a common denominator.

This answer is correct, but it is not in the simplest term. To get the simplest term, you want to divide the numerator and denominator by the same number.

Answer:
The graph in the attached figure
Step-by-step explanation:
Let
x ---> represents the number of matinee tickets she could purchase
y ---> represents the number of evening tickets she could purchase
we know that
The number of matinee tickets (x) multiplied by $7.50 each plus the number of evening tickets (y) multiplied by $12.50 each must be at most (less than or equal to) $100
so
The inequality that represent this problem is

using a graphing tool
The solution is the triangular shaded area
Remember that the number of tickets must be a whole number
see the attached figure