Answer:
1 is k
2 is 12r minus 20
3 10n - 13
4 -14x
5 -11r
Step-by-step explanation:
think you have to simplify
Answer
Find out the total number of minutes they played using associative property.
To proof
Associative property of addition
This property states that
a + ( b + c) = ( a +b) +c
Where a, b, c are the any numbers.
As given
Sophia Played for 18 minutes and 26 minutes last week should play the piano for 40 minutes last week
let
a = 18 minutes , b = 26 minutes , c = 40 minutes
Total number of minutes sophia played = a + ( b + c) = ( a +b) +c
put the value of a, b,c
Total number of minutes sophia played =18+(26 +40) = (18 +26) + 40
= 18 +66 = 44 + 40
= 84 = 84
satisfy the associative property
Therefore the total number of minutes sophia played be 84 mintues.
Hence proved
Answer: it would be 6x-36
Step-by-step explanation: Hope this help :D
Answer: 
Step-by-step explanation:
Formula: Volume = 
a is the length of the base's edge and h is the height. Since 16 is the length we would square it as it is the length, then we would multiply it by the height which is 20 ft.
<u>Steps: Multiply</u>
Volume =
= 
=
~I hope I helped you :)~
Answer:
x = 4
Step-by-step explanation:
since it is an equilateral triangle, each angle is 60°. To find x, set up the equation 17x-8=60
17x = 68
x=4
