The correct answer is b 2.5 cm
Answer:
The unknown number is 1.
Step-by-step explanation:
You have to form an expression. So let's make the unknown number as x. Firstly, a number is multiplied by 5 :


Secondly, 5 is added to product and you will get 10 :

Lastly, you have to solve :





Answer:


Step-by-step explanation:
15−x+y=14−(−x−y)
15-x+y=14+x+y
<em>Subtract 14 from both sides</em>
1-x+y=x+y
<em>Subtract y from both sides</em>
1-x=x
<em>Add x to both sides</em>
1=2x
2x=1
<em>Divide both sides by 2</em>
x=0.5
I because -9 is the smallest number and |6| is the biggest number.
Well first you take 17 and you then take 14 and 19 and you add that all together and you get 50 then you divide 50 in divide that by 3 and you get 16.6