The answer is 336.............
Given that initial time for jogging is,
After each week the time is increased by
This gives an arithmetic sequence.
To find n such that,
Therefore,
So,
Therefore, 9 weeks before you are up to jogging 70 minutes.
Answer:A
Step-by-step explanation:
answer: Riley practiced soccer for 2 1/4 hours Monday and Tuesday. she practiced 2/4 more hours on Wednesday than Tuesday.
explanation: 1/2 is essentially 2/4, add 3/4 it becomes 1 1/4 now add one for 2 1/4.
this is quite self explanatory. 1 1/4 - 3/4 is step by step like this. 1 1/4 - 1/4= 1.
1- 2/4 (half of one whole.) = 2/4.
I hope that explains it.
First find slope intercept for our equation
-6x+3y=18.9
3y=6x+18.9
y=2x+6.3
Since b is y intercept, y intercept is (0,6.3)
Now in x intercept y is equal to 0.
So substitute it for our equation.
0=2x+6.3
-2x=6.3
x=-3.15
So x intercept is (-3.15, 0)