Answer:
10
Step-by-step explanation:
32-b=3b-8
32+8=3b+b
40=4b
b=10
Answer:
-3x-15
Step-by-step explanation:
you use the distributive property. So it would be 3 times -x and 3 times -5 so you get -3x-15.
The mean of the data is 11
now we find the difference between the mean and each number
1, 2, 3, 0.5, 0.25, 1.25, 1.
now we square the numbers
1, 4, 9, 0.25, 0.0625, 1.
now we find the mean of the new numbers
which is 2.1875
2.1875 is your standard deviation.
Answer:
0
Step-by-step explanation:
9x+6=9x+6
-9x-6
0
Answer:

Step-by-step explanation:
we know that
The simple interest formula is equal to
where
I is the Final Interest Value
P is the Principal amount of money to be invested
r is the rate of interest
t is Number of Time Periods
in this problem we have
substitute in the formula above
solve for r

convert to percentage (multiply by 100)
