Answer:
15.15% probability that both months (different) have less than 31 days.
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
Also, the order of the months is not important. For example, picking July and August is the same as picking August and July. So the combinations formula is used to solve this problem
Combinations formula:
is the number of different combinations of x objects from a set of n elements, given by the following formula.
There are 12 months, of which February, April, June, September and November, that is, 5 of them, have less than 31 months.
Desired outcomes:
Picking 2 months from a set of 5(those with less than 31 days). So
Total outcomes:
Picking 2 months from a set of 12(all the months). So
Probability:
15.15% probability that both months (different) have less than 31 days.
Answer:
35
Step-by-step explanation:
Ad them all together and set it equal to 180 since the interior angles of a triangle is equal to 180
x+10+x+3x-5=180
5x+5=180
5X=175
x=35
Answer:
the answer is 84
Step-by-step explanation:
(4(1) +10)+8(5)-10(-3)
4+10+40+30
=84
Answer:
1/80
Step-by-step explanation:
-8*5*xy= -1
Sub 2 for x
-8*5*2*y= -1
-80y=-1
y=1/80
(i was kinda confused because i wasn't sure if the x was a variable or a multiplication symbol but i made it a variable) yea