Question

Please hurry

Which situations can represent the expression Check all that apply. Naomi gives some of her six pencils away. Sydney increased her collection of coins by six. Benjamin lost six of his stickers. Six servings of dinner were decreased by a number. Westville has 6 fewer schools than Eastville. Gabrielle decreased her 6-minute mile by an unknown amount of time.

Answer 1

Explanation:

Hi,

Since there are multiple scenarios, lets first discuss the rules of developing expressions.

1. Any unknown value can be assumed as a variable.
2. An increase means addition and decrease means subtraction.

Using these rules we can develop the following expressions:

• 
  `x - 6`, where
  `x` indicates the total number of pencils Naomi had.
• 
  `y + 6`, where
  `y` represents the number of coins Sydney had initially.
• 
  `z - 6`, where
  `z` refers to the total number of stickers Benjamin had.
• 
  `6 - a`, where a is the number of servings decreased.
• 
  `b + 6,` where b is the number of schools in Eastville.
• 
  `6 - c`, where c indicates the amount of time Gabrielle reduces.

Tip:

In addition, the order of number doesn't matter however this is not the case in subtraction.