Method
15 = - 15 - 8u Add 15 to both sides.
15 + 15 = - 15 + 15 - 8u. This step is meant to get rid of -15 on the right side.
30 = -8u Divide both sides by 8
30 / -8 = u
Note
Usually what you are trying to do is reduce an equation so that it tells you what 1 of the letters is. Since there are many things u could be, you have to choose the one that best fits your answer
u = - 3 6/8
u = - 3 3/4
u = - 3.75
u = - 30/8
u = - 15 / 4
A is vowel.
first condition prevents any vowels, thus there will be no A at all
Total number of cards = 52
Total number of spades = 13
Total number of face cards that are not spades = 3 x 3 = 9
Total number of spades or face cards = 13 + 9 = 22
P(a or b) = 22/52 = 11/26
Answer: 11/26
Answer:
-3.73
Step-by-step explanation:
solution:
Given:
Angle between two lines=60⁰
slope of first line=1
Or, tanA=1
Or, A= tan inverse (1)
so, A=45⁰
so, angle of inclination of first line=45⁰
Now,
angle of inclination of second line= A+ 60⁰
= 45⁰+60⁰
=105⁰
so, slope of second line = tan105.
= -3.73
Answer
given,
opera house ticket = $50
attendance = 4000 persons
now,
opera house ticket = $52
attendance = 3800 person
assuming these are the points on the demand curve
(x, p) = (4000,50) and (x,p) = (3800,52)
using point slope formula
R(x) = x . p
at 
x = 4500
hence at x =4500 the revenue is maximum
for maximum revenue ticket price will be
p = $45
