Mean 60 - 2(0.9) = 58.2
58.2 is 2 standard deviations from the mean.
Answer:
Teacher is 27 years old
Step-by-step explanation:
(1/2)(t - 3) = (1/3)(t + 9)
multiply by 6 to clear the fraction
3(t - 3) = 2(t + 9)
Distribute
3t - 9 = 2t + 18
Subtract 2t from both sides
t - 9 = 18
Add 9 to both sides
t = 27
Teacher is 27 years old
Answer:
D
Step-by-step explanation:
hope this help
Answer:
4years old
Step-by-step explanation:
one is 3 years younger than teddy and the other one is 7 years younger than teddy so 7-3=4
Answer:
3xy^3z
Step-by-step explanation:
3 is the GCF between 3 and 21
Lowest number of x's is 1
Lowest number of y's is 3
Lowest number of z's is 1