the table shows the number of minutes Tim has for lunch and study hall. he calculates that these two periods account for 18% of
the minutes he spends at school .how many minutes does he spend at school?
1 answer:
Tim spends 500 minutes at the school.
Step-by-step explanation:
Given,
Time for lunch = 45 minutes
Time for study hall = 45 minutes
Total = 45+45 = 90 minutes
This represents 18% of the total minutes Tim spend at school.
Let,
x be the total minutes Tim spend at school.
18% of x = 90 minutes
Dividing both sides by 0.18
Tim spends 500 minutes at the school.
Keywords: percentage, division
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The value of q that maximize the profit is q=200 units
Step-by-step explanation:
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This is a vertical parabola open downward (because the leading coefficient is negative)
The vertex represent a maximum
The x-coordinate of the vertex represent the value of q that maximize the profit
The y-coordinate of the vertex represent the maximum profit
using a graphing tool
Graph the quadratic equation
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see the attached figure
therefore
The value of q that maximize the profit is q=200 units
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Step-by-step explanation:
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