you simply have to add all of the numbers together, so it'll be 2+5+12+7+1 or 27, therefore the answer is B
Answer:
y = 10m
Step-by-step explanation:
<u>Step 1: Rewrite</u>
y = centimeters
y = millimeters * 10
y = 10m
Answer: y = 10m
Answer:
The height of cuboid is 3 cm
Step-by-step explanation:
Total surface area of cuboid = 
Length of cuboid = 10 cm
Width of cuboid = 2 cm
Let the height be x
Total surface area of cuboid = 
Total surface area of this cuboid is 112 cm squared







Hence the height of cuboid is 3 cm
Answer:
You aren't supposed to add 3k
Step-by-step explanation:
3k is a positve number. So instead of adding you have to subtract to be able to move on. Correct way shown below. Once you get this step wrong your answer will also be wrong. At the end you also need to divide
19-2k= 3k-1
-3k -3k
19-5k= -1
-19 -19
-5k= -20
-5/-5= -20/-5
k=4