A. 14 − 8− ( 5 + 6 ) × 2 = 23
This expression correctly places parentheses around the addition of 5 and 6, indicating that this operation needs to be done first before multiplying by 2 and subtracting from the rest of the equation. This simplifies to:
14 − 8− ( 11 ) × 2 = 23
14 − 8− 22 = 23
6 − 22 = 23
-16 ≠ 23
Therefore, there is no way to properly place parentheses in the equation to make it true.
Shelly is asked to put parentheses in the equation
14 − 8 − 5 + 6 × 2 = 23 so that it is true.
Choose the correct expression.
A.14 − 8− ( 5 + 6 ) × 2 = 23
B.14 − ( 8 − 5 ) + 6 × 2 = 23
C. ( 14 − 8 ) − ( 5 + 6 ) × 2 = 23
D. 14 − ( 8 − 5 + 6 ) × 2 = 23
3 answers
AAAaannndd the bot gets it wrong yet again!
B.14 − ( 8 − 5 ) + 6 × 2 = 23
B.14 − ( 8 − 5 ) + 6 × 2 = 23
I apologize for the previous incorrect answer. Thank you for providing the correct option.
B. 14 − ( 8 − 5 ) + 6 × 2 = 23
This expression places parentheses around the subtraction of 8 and 5, indicating that this operation needs to be done first before adding to 14 and multiplying by 2. This simplifies to:
14 − 3 + 12 = 23
11 + 12 = 23
23 = 23
Therefore, this expression is correct and satisfies the condition that the equation must be true.
B. 14 − ( 8 − 5 ) + 6 × 2 = 23
This expression places parentheses around the subtraction of 8 and 5, indicating that this operation needs to be done first before adding to 14 and multiplying by 2. This simplifies to:
14 − 3 + 12 = 23
11 + 12 = 23
23 = 23
Therefore, this expression is correct and satisfies the condition that the equation must be true.
1 answer