Question: Convert the temperature from degrees Celsius to degrees Fahrenheit, using the formula below.
F = (9/5 × C) + 32
70°C = □°F
1. **State the problem:** Convert $70^\circ C$ to degrees Fahrenheit using the formula $$F = \left(\frac{9}{5} \times C\right) + 32$$.
2. **Write the formula:** $$F = \left(\frac{9}{5} \times C\right) + 32$$ where $C$ is the temperature in Celsius and $F$ is the temperature in Fahrenheit.
3. **Substitute the value:** Replace $C$ with $70$:
$$F = \left(\frac{9}{5} \times 70\right) + 32$$
4. **Calculate the multiplication:**
$$F = \left(\frac{9}{5} \times 70\right) + 32 = \frac{9 \times 70}{5} + 32$$
5. **Simplify the fraction:**
$$F = \frac{\cancel{9} \times 70}{\cancel{5}} + 32 = \frac{9 \times 70}{5} + 32 = 9 \times 14 + 32$$
6. **Multiply:**
$$F = 126 + 32$$
7. **Add:**
$$F = 158$$
**Final answer:** $70^\circ C$ is equal to $158^\circ F$.