Question

b. dimanche, la température était de 4 °c. elle a chuté de 8 °c lundi et a chuté à une demi de cela mardi. quelle était la température mardi?

Explanation:

Step1: Calculate the temperature change on Monday

The temperature on Sunday was \(4^{\circ}C\). It dropped by \(8^{\circ}C\) on Monday. So the temperature on Monday is \(4 - 8=-4^{\circ}C\).

Step2: Calculate the temperature change on Tuesday

On Tuesday, it dropped by half of the Monday - drop. The Monday - drop was \(8^{\circ}C\), so the Tuesday - drop is \(\frac{8}{2} = 4^{\circ}C\).
Starting from the Monday temperature of \(- 4^{\circ}C\), the temperature on Tuesday is \(-4-4=-8^{\circ}C\).

Answer:

The temperature on Tuesday was \(-8^{\circ}C\)