Answer:
1
Step-by-step explanation:
Let the number be X
condition
12 more than seven times the number
it can be represented numerically by using process given belwo
seven times the number will be 7 * X = 7X
12 more than 7X will be equal to 7X + 12
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This number (7X + 12) is equal to number plus 19
number plus 18 will be X + 18
therefore according to the question
7X + 12 = X + 18
=> 7X - X = 18 - 12
=> 6X = 6
=> X = 6/6 = 1 (Answer)
The number is 1.
Answer:
0.2322 or 23.22 %
Step-by-step explanation:
We have to solve and find the area out of these limits
μ + 0,3 = 210 + 0,3 ⇒ 210,3 and
μ - 0,3 = 210 - 0,3 ⇒ 209.7
z(l) = ( x - 210 ) / (2.8/√84) ⇒ z(l) = - (0.3 * 9,17)/ 2.8
z (l) = - 1.195
We need to interpole from z table
1.19 ⇒ 0.1170
1.20 ⇒ 0.1151
Δ ⇒ 0.01 ⇒ 0.0019
And between our point 1,195 and 1,19 the difference is 0.005
then 0.01 ⇒ 0.0019
0.005 ⇒ ?? (x)
we find x = 0.00095
to get the area for poin z (l) - 1.195 up to final left tail is from z table
0,1170 - 0.00095 = 0.1161
And by symmetry to the right is the same
So 0.1161 * 2 = 0.2322
We find the area out of the above indicated limits the area we were looking for. This is the probability of finding shafts over and below the population mean and 0.3 inches
Step-by-step explanation:
The largest percentage of the students living on campus is in the 1st year group is false
Answer:
THE VALUE OF X IS 18
Step-by-step explanation:
Answer:
x=-6
Step-by-step explanation:
3x+8=-10
Isolate x and its coefficient by subtracting 8 from both sides
3x=-18
Divide by 3
x=-6
