Answer:
The mean is about 28 :)
Step-by-step explanation:
add up all of your numbers, and divide by the amount you have.
Mean is average 11 x 2 = 22
The two cards need to equal 22 when added together.
the difference is 6:
6/2 = 3
11-3 = 8
11+ 3 = 14
14 +8 = 22
the two numbers are 8 and 14
Answer:
X=+260
Step-by-step explanation:
In the picture. I hope that it's a clear.
It is d, -8.-5. I did it on paper
x+142 =3x+64
subtract x from each side
142 = 2x+64
subtract 64 from each side
142-64 = 2x
78=2x
divide by 2
78/2 = x
x=39
The number is 39