Please try to follow this closely.
Ready ? OK, here goes:
<em> Add 2.6 to each side of the equation.</em>


check the picture below.
bearing in mind that "t" cannot be less than 0.
Answer:
0.75 hours
Step-by-step explanation:
1 1/2 hours divided by 2 is 0.75
(where 1 1/2 can be written as 1.5).
In minutes: half of 90 minutes is 45 minutes.