Simplify the expression. $$ -19+\left(\frac{-4.5+6.87}{3}\right) \cdot 5^{2}-7.3 $$

Question

UpStudy AI · Accepted Answer

Let's simplify the expression step-by-step:

$$
-19 + \left(\frac{-4.5 + 6.87}{3}\right) \cdot 5^{2} - 7.3
$$

1. **Calculate inside the parentheses:**

$$
   \frac{-4.5 + 6.87}{3} = \frac{2.37}{3} = 0.79
   $$

2. **Calculate $$5^2$$:**

$$
   5^2 = 25
   $$

3. **Multiply the results from steps 1 and 2:**

$$
   0.79 \times 25 = 19.75
   $$

4. **Substitute back into the expression:**

$$
   -19 + 19.75 - 7.3
   $$

5. **Combine the terms:**

$$
   (-19 + 19.75) - 7.3 = 0.75 - 7.3 = -6.55
   $$

**Final Simplified Result:**

$$
-6.55
$$
The simplified result of the expression is $$-6.55$$.

Simplify the expression.