Remark
There is a very quick way to do this. Scan the numbers. You want 75 to be the mean, so make it so. Then figure out how many up or down you go from 75. I'll make a list of the givens.
72 - 3 72 is three down from 75 so call it - 3
75 0 That is your desired average so it adds nothing to the score.
74 -1 It is one down from 75, so call it -1
76 +1 It is one up from 75
76 +1 it is one up from 75
75 adds 0.
-3 - 1 + 1 + 1 = - 2
That comes - 2/7 which means that you need a score just under 75. So 75 will give you the right average of 75
Answer B <<<<<
Answer:
810
Step-by-step explanation:
21 = 42
Decode:
Number in the tens place = 2 x 2 = 4
Number in the ones place = 1 x 2 = 2
Answer: 42
39 = 618
Decode:
Number in the tens place = 3 x 2 = 6
Number in the ones place = 9 x 2 = 18
Answer: 618
17 = 214
Decode:
Number in the tens place = 1 x 2 = 2
Number in the ones place = 7 x 2 = 14
Answer: 214
Find 45
Number in the tens place = 4 x 2 = 8
Number in the ones place = 5 x 2 = 10
Answer: 810
Answer:
72
Step-by-step explanation:
3(20+4)=a0
60+12=a0
72=a0
im not quite sure what you want. I solved for a0. Plz tell me if this is correct. If its not, tell me what u need, then I will solve it for you.
Answer:
We need to find which expressions are equivalent to 
, 
or neither.
: We extract the greatest common factor which is 6. Remember, when we extract a GCM, we divide each term by it.
Therefore, this expression is equivalent to neither of the given expressions.
: We just need to apply the distributive property.
Therefore, this expression is equivalen to .
We use the same process to the other expressions.
, equivalent to neither.
