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weeeeeb [17]
3 years ago
7

Bob has a bag full of dimes and quarters.

Mathematics
1 answer:
Cerrena [4.2K]3 years ago
6 0

Answer:

x+y=20

.10x+.25y=3.80

Step-by-step explanation:

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Find an equation of the line that is perpendicular to the graph of 2x+5y=5 and contains the point of intersection of the graphs
gavmur [86]

Answer:

  5(x+1) -2(y-3) = 0

Step-by-step explanation:

For a given line ax+by=c and point (h, k), a perpendicular line through the point can be written as ...

  b(x-h) -a(y-k) = 0

A graphing calculator shows the point of intersection of the graphs of the two lines to be (x, y) = (-1, 3), so the line perpendicular to 2x+5y=5 through that point can be written ...

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_____

In the attached graph, the requested line is shown in black.

3 0
3 years ago
A businessman buys 1,440 dozen pens at $2.50 a dozen and then sells them at a price of 25¢ apiece. what is his total profit on th
Harlamova29_29 [7]
Profit (P) is calculated by subtracting the total cost (C) from the total revenue (R). The calculations are shown below, 

       R = (1440 dozens) x (12 pieces / 1 dozen) x (25 cents/ piece) = $4320
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                          Profit = R - C = $4320 - $3600 = $720

Thus, the businessman's profit is $720. 

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3 years ago
Look at the triangle: A right angle triangle is shown with hypotenuse equal to 10 centimeters. An acute angle of the triangle is
trasher [3.6K]
Tan x°= Opposite/ adjacent<span>so tan </span>x°=86
7 0
3 years ago
im giving my friends 9 cupcakes thats 60 percent of my order how many more cupcakes do i need to get my order to 100 percent
Gwar [14]

Answer:

6 more cupcakes.

Step-by-step explanation:

60% of 15 is 9, so 15-9 is 6.

4 0
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The answer is -4 inches per month

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