Answer:
If 7 minus 5 equals 2, then 7 minus 2 equals 5.
Step-by-step explanation:
This is because of the associative property of equality.
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Well if the 8 is squared the answer should be 31
Answer:x=-1
Step-by-step explanation:
A + b = 13
22 a + 18 b = 258
------------------------
a = 13 - b
22 * ( 13 - b ) + 18 b = 258
286 - 22 b + 18 b = 258
- 4 b = 258 - 286
- 4 b = - 28
b = ( - 28 ) : ( - 8 ) = 7
a = 13 - 7 = 6
Answer:
6 tour packages a and 7 tour packages b were sold.
Answer:
10.62
Step-by-step explanation:
Mean can be described as the average of a sum of numbers, it can be calculated by sum ing all the numbers together and then diving by the total
The mean of the set of numbers shown in the question above can be calculated as follows
3+4+6+7+10+15+19+21/8
= 85/8
= 10.62
Hence the mean is 10.62