Notice that $$ 7+(7-3)-1=10 $$, but that a different placement of parentheses would yield the statement $$ (7+7)-(3-1)=12 $$. Place parentheses to turn the equalities below into true statements. (a) $$ 13-8-4-1=8 $$ (b) $$ 13-8-4-1=0 $$ (a) Choose the true statement below. A. $$ (13-8)-(4-1)=8 $$ B. $$ 13-8-4-1=8 $$ C. $$ 13-(8-4)-1=8 $$

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UpStudy AI · Accepted Answer

We need to determine which placement of parentheses makes the left‐side expression equal to $$8$$.

Check each option step-by-step:

1. **Option A:**
   $$
   (13-8)-(4-1)
   $$
   First, compute:
   $$
   13-8=5 \quad \text{and} \quad 4-1=3
   $$
   Then subtract:
   $$
   5-3=2
   $$
   This gives $$2$$, not $$8$$.

2. **Option B:**
   $$
   13-8-4-1
   $$
   This expression is evaluated from left to right:
   $$
   13-8=5, \quad 5-4=1, \quad 1-1=0
   $$
   This gives $$0$$, not $$8$$.

3. **Option C:**
   $$
   13-(8-4)-1
   $$
   First, compute the parentheses:
   $$
   8-4=4
   $$
   Then substitute back into the expression:
   $$
   13-4-1=8
   $$
   This gives the correct result $$8$$.

Thus, the true statement is:

$$
13-(8-4)-1=8
$$
$$13-(8-4)-1=8$$

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