Solve the system of equations by y= 5x + 8 y = 8x + 9
1 answer:
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Answer:
The graph of the equation is shown in the picture attached below.
We can see w = 12 corresponds to the global maximum of the function, and for any w greater than 12 the value of A(w) decreases.
This means that for any value of the width greater than 12, the function cannot model the situation.
Making the equation only valid for
w ∈ [0,12]
Answer:
The correct option is E. 16 min 12 sec.
Step-by-step explanation:
Consider the provided information.
When the readout indicated 24 min 18 sec, she had completed 10% of her exercise session.
That means 24 min 18 sec is 90% of her exercise time.
First convert the 24 min 18 sec into seconds:
24 min 18 sec = 1440+18 = 1458 seconds
Let x represents the 100%.
That means the total time of workout was 1620 seconds or 27 minutes.
Now she had completed 40% of her exercise session, that means the readout will indicate 60% of the time.
Calculate the 60% of 1620 as shown:
Now convert 972 seconds into minutes as shown:
972 seconds = 960 seconds + 12 seconds = 16 min 12 seconds
Hence, the correct option is E. 16 min 12 sec.