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motikmotik
3 years ago
15

Help please...Thanks

Mathematics
1 answer:
Maru [420]3 years ago
4 0
There are 14 boys, therefore 16 girls.
Ratio of boys:girls is 14:16
14/16 = 7/8 so answer is the 3rd option.
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How many gallons of oil can a cylindrical tank with diameter 120 feet and height 60 feet hold?
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For a certain commodity the supply equation is given by S = 2p + 5 At a price of $1, there is a demand for 19 units of the commo
slava [35]

Answer:

The demand equation is: D=-4p+23

Step-by-step explanation:

To get started, we should keep in mind that the market price (p=3) occurs when supply equals demand ,therefore when p=3

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We already know two points on the demand curve. Great!

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The variable b is the slope of  the demand linear equation . It can be computed through the formula

b=\frac{y2-y1}{x2-x1}.  equation 1

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We can use any of the points. Let's take (3,11) and write in point-slope :

y-11=-4(x-3)

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Rewrite the linear equation according our variables D and p

D=-4P+23

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8 0
1 year ago
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