Answer:
k = 5
Step-by-step explanation:
Given
+ 
= 3 ( multiply through by 3 to clear the fractions )
k + 1 = 6 ( subtract 1 from both sides )
k = 5
The correct answer is 1 inch.
Bottom right one is the range
Answer:
5 1/5
Step-by-step explanation:
6 1/2 *4/5
Rewriting as an improper fraction
( 2*6 +1)/2 *4/5
13/2 *4/5
52/ 10
50/10 + 2/10
5 +1/5
5 1/5
First, find the surface area of the bigger sides (there are 4 of them so what you get for one you will multiply by 4)
12 x 8 = 96
96 x 4 = 384
Then find the surface area of the smaller sides ( there are two small sides so multiply your answer by two)
8 x 8 = 64
64 x 2 =128
Then add both together
128 +384 = 512
Hope this helps :)
