Answer:
The value of n in this equation is -3/4
Step-by-step explanation:
5 - (n - 4) = 3 (n + 2)
Distribute the negative to (n - 4) and distribute 3 to (n + 2).
5 - n + 4 = 3n + 6
Add 4 to -5.
9 - n = 3n + 6
Subtract 9 from 6.
-n = 3n - 3
Subtract 3n from n.
4n = -3
Divide 4 by -3.
n = -3/4
x = number of hours
want to find probability (P) x >= 13
x is N(14,1) transform to N(0,1) using z = (x - mean) / standard deviation so can look up probability using standard normal probability table.
P(x >= 13) = P( z > (13 - 14)/1) = P(z > -1) = 1 - P(z < -1) = 1 - 0.1587 = 0.8413
To convert that to percentage, multiply 100, to get 84.13%
Answer:
4261
Step-by-step explanation:
8522/2
2*4261=8522
long division
24 cubic meters because 24*24*24=13,824.
13. they are not, because the parentese's make it different by applying the order of operations to the two sections, rather than in a long line.
the first one is equal to 1/40 1/4 * 10 = 1/40
second one is equal to 3/8 10 / 40 / 2 *5 = .25 / 2 * 5 = 3/8
14. g + w = 40 since there are both grape and watermelon in the entire jar of 50
15. algebraic because it involves variables and not just numbers dependent on PEMDAS
