Answer:
The call lasted 13 minutes
Step-by-step explanation:
In this question, we are told to find the number of minutes a call lasted.
The initial amount on the card is $30 and after making a phone call just once, the balance went down to $28.83
What was used would be 30 - 28.83 = $1.17 or simply 117 cents
Now these long calls come at a cost of 9 cents per minute and we have a total of 117 cents here; the number of minutes is thus 117/9 = 13
This means Kala spent 13 minutes on the call
Let see...
So we know that × is less than 14.3 subtract by 9.
We can figure out what × is is by subtracting 14.3 with 9 and then find the answer less than it.
So now we know that the answer can be 5.3 or more. This means that we can cross out 5.3, 6.4, and 7.5.
So it would be 3.1 and 4.2.
Answer:
Height=9/2=4.5
A=1/2*b*h
A=1/2*6*4.5
A=13.5
13.5*2=27
The area of the shaded region is 27.
Distance between two skaters=40
difference in speed=2 m/sec
time=distance/time
=40/2
20 seconds
