
Step-by-step explanation:
Since we have given that
Time taken by steamboat makes the trip=5 hours
Time taken by yacht makes the trip =2.5 hours
Since we have also given that
the yacht is 20 knots faster than the steamboat,
So let the speed of steamboat be x
Let the speed of yacht be x+20
Now, we have given that both boats will travel the same distance ,
So,

Hence,

Answer:
a) 160 minutes per day
b) Find the graph attached
c) on 10th week Maria would be walking 2560 minutes per day
Step-by-step explanation:
Week 1 - 5 minutes per day
Week 2 - 10 minutes per day
Week 3 - 20 minutes per day
Week 4 - 40 minutes per day
Week 5 - 80 minutes per day
Week 6 - 160 minutes per day
a) 160 minutes per day
b) Find the graph attached
c) on 10th week Maria would be walking 2560 minutes per day
Answer:

Step-by-step explanation:
OPQ is a right angle triangle.
<u>Using Pythagoras</u>

<u>Using quadratic formula</u>
<u />

OR
(Length can't be negative)
∴ 
<u>How to Find the Distance Between Two Points</u>
Distance formula: d(P, Q) =√(x2 − x1)^2+(y2 − y1)^2
If you use this equation the answer will be 5.