X + 5y – z = 0 2x – y + 3z = -1 y = 1
1 answer:
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Answer:
Emma can complete the calls alone in 6 days, which means she can complete of the calls in one day. So, Emma’s rate per day is
. Jackson can complete the calls alone in
days, which means he can complete
of the calls in one day. So, Jackson’s rate per day is
. Because they’re working together, the time,
, is the same for both.
Multiply across the table to find the part of the task each has completed. Use the equation work completed = (rate)(time) to fill in the last column cells.
Step-by-step explanation:
Answer:
And we know that the level is decreasing 20% each day so then we can use the following model for the problem
Where t represent the number of days and L the level for this case we want to fnd the level after two days so then t =2 and replacing we got:
Step-by-step explanation:
For this case we know that the initial volume of water is:
And we know that the level is decreasing 20% each day so then we can use the following model for the problem
Where t represent the number of days and L the level for this case we want to fnd the level after two days so then t =2 and replacing we got: