Answer:
a. 7 times
b. 74.7 km
Step-by-step explanation:
a. From Albany to Pittsburgh, there are 739.7 km.
She stopped to rest after every 95 kilometres:
Therefore, let us find how many times she stopped:
739.7 / 95 = 7.79
We only need the quotient, that is, 7
So she stopped 7 times.
b. After her last stop, she had traveled:
7 * 95 = 665 km
Therefore, the distance she has left after her last stop is:
739.7 - 665 = 74.7 km
C) Undefined
formula: y-y/x-x
9--5= 9+5=14
-5--5= -5+5= 0
14/0
you can't divide by 0 so it's undefined
So, if 60 beats was decreased by 2/5 before, we know that 60 beats = 3/5 of her heart rate after she ran the mile.
(Because 1 - 2/5 = 3/5)
So, 3/5 = 60, and we're trying to find 1.
So I would first divide both sides by 3.
3/5 = 60
/3 /3
1/5 = 20
Then multiply both sides by 5.
1/5 * 5 = 20 * 5
1 = 100
So her heart rate was 100 beats per minute immediately after she ran the mile.