To find the mean absolute deviation, you have to find the mean first.
1+1+2+2+2+4=12
12 divided by 6 numbers=2 The mean of that is two
Next, you have to find the amount the original numbers are away from the mean.
1= 1 away from 2 2=0 away from 2 4=2 away from 2
You should get: 1,1,0,0,0,2 Next, you have to find the mean of the new set of numbers. 1+1+0+0+0+2=4
4 divided by 6= 2/3
The mean absolute deviation is 2/3
Answer:
x=6
Step-by-step explanation:
4(2x - 1) + 7 = 6x + x + 9
8x - 4 + 7 = 6x + x + 9
8x-6x-x=9+4-7
x=6
Answer:
18%
Step-by-step explanation:
Since the original price is $78 then this is the original 100% of the price. The new price will be marked up x percent and be $92. To find the new price set up a proportion with these values:
Solve for the original price by cross multiplying numerator with denominator.
x(78) = 92(100)
78x = 9200
x= 117.9 = 118%
This is 18% more or over the original price.
Answer:
16 units²
Step-by-step explanation:
Surface area
= square + 4 triangles
= 2² + 4(½ × 2 × 3)
= 4 + 4(3)
= 4 + 12
= 16
