Answer:
4 x (b+2)
Step-by-step explanation:
Jesus is king :)
Average = (sum of ages)/(number of people)
27 = 324/n
n = 324/27 = 12
there are 12 friends in the group
Printer A
y = 14x
Printer B
Time(min) | 3 | 5 | 8 | 12 |
Pages printed | 48 | 80 | 128 | 192 |
Printer A prints 14(1) = 14 pages per minute.
Printer B prints 48/3 = 16 pages per minute.
The printer that prints at a faster rate is printer B.
Answer:
5/36
Step-by-step explanation:
Probability is the outcome that a event will occur
Probability = Expected outcome/Total outcome
Since two sided dice are rolled, the total outcome will be expressed as;
Total outcome = 36
Since we are to find the probability that the sum is 8, the values that gives a sum of 8a re;
(2,6)(6,2), (5, 3), (3,5), (4, 4)
The expected outcome = 5
Probability = 5/36
Hence the probability that the sum is 8 is 5/36
Answer:
14.5, 13, 11.5
Step-by-step explanation:
the general term (an) of an arithmetic sequence with first term a1 and common difference d is
an = a1 + d(n-1)
then the 8th term is
a8 = a1 + d(8-1)
and the 12th term is
a12 = a1 + d(12-1)
so, the difference between these terms is
a12 -a8 = (a1 +11d) -(a1 +7d) = 4d
= (-2-4) = -6 . . . substituting values for a12 and a8
then the common difference is
d = -6/4 = -3/2
using this, we can find a1 from a8.
4 = a1 +7·(-3/2) = a1 - 10.5
14.5 = a1 . . . . add 10.5 to both sides of the equation
this is the first term. the second is this value with the common difference added:
14.5 + (-1.5) = 13
the third term is this with the common difference added:
13 + (-1.5) = 11.5
in summary, the first three terms are
14.5, 13, 11.5