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PolarNik [594]
3 years ago
15

Mary has twice as many dogs as David has cats and josh has enough animal collars to give a collar to one third of the dogs or to

give a collar to all the cats except one. How many collars does josh have?
Mathematics
1 answer:
Ann [662]3 years ago
3 0
D = 2C
J = 1/3D
J = C - 1

J = 1/3D
J = 1/3(2C)
J = 2/3C

2/3C = C - 1
2/3C - 3/3C = -1
-1/3C = -1
C = -1 * -3
C = 3...there are 3 cats

J = C - 1
J = 3 - 1
J = 2.....there are 2 collars





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one hose can fill a goldfish pond in 14 minutes, and the two hoses can fill the same pond in 10 minutes, find how long it takes
likoan [24]

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35

Step-by-step explanation:

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Step-by-step explanation:

First you have to realize that these are similar triangles.

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3 years ago
Mathematics challenge
kari74 [83]

Get the equation of the line containing PQ using the point-slope formula:

<em>y</em> - (-2) = 3/2 (<em>x</em> - (-6))

Solve for <em>y</em> to get it in slope-intercept form:

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so the <em>y</em>-intercept is (0, 7).

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