SOLUTION: A bookstore manager plans to spend $60.00 on pens at 30 cents each and pencils at 10 cents each. The equation 0.10x + 0.30y = 60 can be used to model this situation. a.) What do x

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Question 91171: A bookstore manager plans to spend $60.00 on pens at 30 cents each and pencils at 10 cents each. The equation 0.10x + 0.30y = 60 can be used to model this situation.
a.) What do x and y represent?
b.) Graph th equation.
c.) Write the equation in slope-intercept form.
d.) What is the slope of the line?
e.) What does the slope tell you?
Found 2 solutions by jayanthihemkos@yahoo.com, stanbon:
Answer by jayanthihemkos@yahoo.com(87) About Me  (Show Source):
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
A bookstore manager plans to spend $60.00 on pens at 30 cents each and pencils at 10 cents each. The equation 0.10x + 0.30y = 60 can be used to model this situation.
a.) What do x and y represent?
x is the # of pencils; y is the number of pens
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b.) Graph th equation.
Solve for y, as follows:
y = (-1/3)x + 200
graph%28400%2C300%2C-10%2C625%2C-10%2C225%2C%28-1%2F3%29x%2B200%29
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c.) Write the equation in slope-intercept form.
y=(-1/3)x+200
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d.) What is the slope of the line?
slope = -1/3
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e.) What does the slope tell you?
As the number of pens sold decreases 1 the number of percils sold increases
by 3
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Cheers,
Stan H.