So basically you have to add, whenever you add with the same denominator you just add the numerator.
Steps
1. Add +
2. Since they have the same denominators add the numerators, 1+4=5
3. You're total answer should be , whenever you get the same number in the numerator and the denominator the answer will always be one.
Final Answer, + equals to one.
Hope This Helps :)
The measure,in degrees,of the three angles of a triangle are given by 2x + 1,3x - 3, and 9x.Whar is the measure of the smallest angle
Answers
(2x+1)+(3x-3)+9x = 180
14x-2 = 180
14x = 182
x = 13
Plugging back in, your angles are 27 degrees, 36 degrees, and 117 degrees, respectively. So the 2x+1 angle is the smallest.
150 in. = ___ ft ___ in.
Answers
150 in. = 12 ft. 6 in.
ANSWER: 150 = 12.5 feet
There is a 20% chance that it will snow on Monday and a 40% chance on Tuesday. What is the probability that it will NOT snow on both Monday and Tuesday?
Answers
P(Event) = 4/5 * 3/5 = 12/25
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Y=Yes=Will Snow
N=No=Won't Snow
There is a 20% chance (1/5) that it will snow on Monday. This means that there is an 80% (4/5) chance that it won't snow on Monday.
Y, N, N, N, N
There is a 40% chance (2/5) that it will snow on Tuesday. This means that there is a 60% chance (3/5) that it won't snow on Tuesday.
Y, Y, N, N, N
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Create a table for combinations N, N or Y, N or N, Y or Y, Y:
*Where N, N place (X). Where Y, N or N, Y or Y, Y - place (O).
: Y N N N N ................................. Y : O O O O O Y : O O O O O N : O X X X X N : O X X X X N : O X X X X
The combination N, N represented with (X) appears 12 times out of 25 which is your answer (12/25).
. Solve: 5x < 9x-1 / 2
-4x < - 1/2 , now divide by -4 and switch signs
x > 1/8
2. There is a 20% chance that it will snow on Monday and a 40% chance on Tuesday. What is the probability that it will NOT snow on both Monday and Tuesday?
P( NOT snow on both Monday and Tuesday) = (1-.2)(1-.4) = 12/25
c. 12/25
3. The total cost of renting a sailboat is $120 plus $60 a day. How many days was a sailboat rented if the total cost was $360? Solve.
120 + 60d = 360
60d = 360 - 120 = 240
d = 4
4. Two cards are chosen at random without replacement from a deck of 52 cards containing 4 kings. Which expression could be used to find the probability of choosing two kings?
b. 4/52 x 3/51
There are 4 x 3 ways to pick 2 kings
There are 52 x 51 ways to pick any two cards
A library is open til' 5:00 P.M. On Wednesdays, the library closes 2 hours early. How many hours for a month is the library open.
Answers
so if you assume that the month has 30 days and that the library opens at midnight, then 24 hours in a day 5 pm=12+5=17 hours on wednessday=17-2=15 hours wednessday=1/7 of week so we find 1/7 of 30 which is 30/7=4 and 2/7 then subtract that from 30 30-4 and 2/7=25 and 5/7
ok so then we have 25 and 5/7 days is 17 hours and 4 and 2/7 days is 15 hours so just multipy them and add
25 and 5/7 times 17=437.143 hours 4 and 2/7 days times 15 =64.2857 add
437.143+64.2856=501.429 so aprox 501.429
the real equation is where n represents the number of days in the month
apros 501.429
What is the value of the expression?2/3 - (1/4) x (4/9)