b. the lines are perpendicular
c. the angles are complementary
d. the lines are not coplanar
1/4
B.
1/13
C.
7/52
D.
17/52
Answer:
There is 120 milligrams of caffeine in a cup of coffee.
Step-by-step explanation:
A cup of brewed tea has 54 milligrams less caffeine than a cup of brewed coffee. A cup of tea has 66 milligrams of caffeine.
Let the amount of caffeine in a cup of coffee be = x
In the equation form, we can denote this as:
Solving for x
x = 120
Therefore, there is 120 milligrams of caffeine in a cup of coffee.
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Answer:
B = 13.75
Step-by-step explanation: