In order for a chemical reaction to take place, the Fahrenheit temperature of the reagents must be at least $142.63^{\circ} \mathrm{F}$. Find the Celsius temperatures at which the reaction may occur. $\left(\mathrm{F}=\frac{9}{5} \mathrm{C}+32\right)$ Round your answer to the nearest hundredth of a degree.
A) $\mathrm{C} \geq 61.46^{\circ}$
B) $\mathrm{C} \geq 288.73^{\circ}$
C) $\mathrm{C}

Question

In order for a chemical reaction to take place, the Fahrenheit temperature of the reagents must be at least $142.63^{\circ} \mathrm{F}$. Find the Celsius temperatures at which the reaction may occur. $\left(\mathrm{F}=\frac{9}{5} \mathrm{C}+32\right)$ Round your answer to the nearest hundredth of a degree.
A) $\mathrm{C} \geq 61.46^{\circ}$
B) $\mathrm{C} \geq 288.73^{\circ}$
C) $\mathrm{C}<288.73^{\circ}$
D) $\mathrm{C} \leq 61.46^{\circ}$

Quizplus · Accepted Answer

To convert $142.63^{\circ}F$ to Celsius, use the formula $C = \frac{5}{9}(F - 32)$. Substituting $142.63$ for $F$, we get $C = \frac{5}{9}(142.63 - 32) = \frac{5}{9}(110.63) \approx 61.46^{\circ}C$. Therefore, the reaction occurs at $C \geq 61.46^{\circ}$.

In Order for a Chemical Reaction to Take Place, the Fahrenheit