Question

Joaquin recorded a temperature of 62°F this morning for science class. The temperature increased 6 1/2°F in the afternoon before decreasing 8.7°F in the evening. What was the evening temperature?

Answer 1

Add 6.5 to 62 then subtract 8.7 to get 59.8

Answer 2

Answer: $59.8^{\circ} F$

Step-by-step explanation:

Given : Joaquin recorded a temperature of 62°F this morning for science class.

The temperature increased $6\dfrac{1}{2}^{\circ}F$ in the afternoon before decreasing 8.7°F in the evening.

We can write $6\dfrac{1}{2}$ as $6+\dfrac{1}{2}=6+0.5=6.5$  .

Now According to the question , the temperature at evening will be :-

$62^{\circ}F+6\dfrac{1}{2}^{\circ}F-8.7^{\circ}F\\\\=62^{\circ}F+6.5^{\circ}F-8.7^{\circ}F\\\\=(62+6.5-8.7)^{\circ}\ F=59.8^{\circ}\ F$

Hence, the evening temperature was $59.8^{\circ} F$ .