Sophia Played for 18 minutes and 26 minutes last week should play the piano for 40 minutes last week use the associative property to find the total number of minutes they played

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