-14a-5=-12
+5 +5
-14a=-7
Divide -7 by -14a
a=2
Answer:
15+2a
Step-by-step explanation:
7+a+8+a=15+2a
It really depends on the situation as probability depends on logic more than simple mathematical equations. However you must keep in mind a few principles:
1- P = number of possible outcomes of the event / total outcomes
2- P always less than or equal to 1.
3- For independent events A and B to occur simultaneously, P= P(A) x P(B)
You can send me the question you’re stuck at for further help.
2-1, 3-2, 4-3, 1*1, 1/7, any number of expressions fit the bill here.
Since there are no numbers, i will assume that the length of recess is 1 minute, or x. if social studies is 4 more than 2 times the length of recess, we can use the equation x*2+4 to solve the problem. the end result will be 6 minutes. Social studies is 6 minutes longer than recess