Hey!
It says that it is the sum of 3 consecutive odd integers right?
So then we give these numbers some variables to work with like so...
x = 1st number
x + 2 = 2nd number
x + 4 = 3rd number
now set all of them equal to 207
x + x + 2 + x + 4 = 207
3x + 6 = 207
3x = 201
<u>x = 67</u><u /> <u>x + 2 = 69</u><u /> <u /><u /> <u>x + 4 = 71
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Answer: $36.90
Step-by-step explanation: $60 25% off = $45. $45 18% off is $36.90
Answer: -2√7
Step-by-step explanation:
Answer:
C. {x|x is an odd natural number between 1 and 67}
Step-by-step explanation:
B and C is also correct if the natural number is defined to be started with 1: positive integer,
but if it's defined to be non-negative real number then only C
Answer:
0.15866
Step-by-step explanation:
First, we calculate z-score
Mathematically;
z-score = value-mean/SD
here, mean = 47 , SD = 5 and value = 52
z-score = (52-47)/5 = 5/5 = 1
The probability we want to calculate is;
P(z<1) and we can access this from the standard score table
P(Z<1) =0.15866
