Answer:
5.5
Step-by-step explanation:
The given operation is :
20 - 0.45 x 20 - 1.75 x 2 - 2
In the above algorithm contains more than one operations to be executed. Here we use the BODMAS rule that states that we first calculate the brackets then the orders, following multiplication or division and then at last addition or subtraction. Therefore,
20 - ( 0.45 x 20 ) - ( 1.75 x 2 ) - 2
= 20 - 9 - 3.5 - 2
= 11 - 3.5 - 2
= 7.5 - 2
= 5.5
