Answer:
Answer is on Sunday the river depth decreases the most.
Step-by-step explanation:
Given that the depth of river changes
It is not given increase or decrease
But by convention, normally if positive sign for change means increase and negative sign means decrease.
Since Friday and Saturday show change by positive values namely 7/10 and 7/8 feet. we can say that change is increase
But On Sunday, the change is negative =-11/15
This implies 11/15 feet decreases
Hence this is the highest of all the three
Answer is on Sunday the river depth decreases the most.
(Because it is the only day where decrease takes place)
The river depth decrease the most on Sunday
By solving the fractions
Friday = 7/10 = 0.7
Saturday = 7/8 = 0.87
Sunday = -11/15 = -0.73
So as we see the Sunday value is negative and it is least as compared to others so this is the most decreased depth.
