Answer:
6
Step-by-step explanation:
add 11 to both sides, that cancels out so then your left with 7x=42, divide by 7 on both sides then you should get x=6
Answer:
1/2 mile
Step-by-step explanation:
3/8+1/8=4/8 or 1/2 simplified
1-1/2=1/2
same has to walk 1/2 mile more to walk his dog a full mile
The probability of getting the correct order in the spelling bee is 1 chance in 362,880.
This is a permutation problem. Our goals is to find the total number of ways that the 9 students can be ordered.
For the first spot there are 9 choices, then 8 choices, then 7 choices....
We need to evaluate:
9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1 = 362,880
Another way to write this is: 9!
A= P(1 + r/n) ^nt
21000=7000(1+0.055/2)^1t
t = 20.52 years
B,
P(A and B)= P(A)xP(B)
P(A and B)=0.60x0.30
P(A and B)=0.18
