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ivolga24 [154]
3 years ago
10

Roger has $5000 more invested at 7 1/4% then he has at 6%. If his total profit at the end of the year $659.30, how much has he i

nvested at each rate?
Mathematics
1 answer:
kkurt [141]3 years ago
4 0

Answer:

You have the number of nickels and the number of quarters both expressed in terms of the number of dimes.  So let your variable be the number of dimes.  Call this D.  Then the number of nickels is 4D, and the number of quarters is D+6.  The total value is

0.10(D) + 0.05(4D) + 0.25(D+6) = 4.25

Solve this for D, and use D to find 4D and D+6.

Step-by-step explanation:

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antiseptic1488 [7]

Answer:

x/2

Step-by-step explanation:

Madison didn't cancel the common factor of 2 and that 4 that is why she is wrong.

Hope this helps pls brainliest have a nice day :>

5 0
2 years ago
(2a^x +1/2 b^x)^2 thank you!!!!!!!!!!!!!!!!!!!1
kogti [31]
Note that (a+b)^2 = a^2 + 2ab + b^2.

Therefore, 
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<span>(2a^x +1/2 b^x)^2 becomes (2a^x)^2 + 2(2a^x)(-------- ) + ------------
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LCD is 4.  Thus, we have
                                             
            4 [ (2a^(2x) ] + 8</span>a^x*b^x + b^(2x)
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3 0
4 years ago
Plot the vertex and the axis of symmetry of this function on the provided graph.
tia_tia [17]

Answer:

(-2,-6)

-2

Step-by-step explanation:

To get the vertex take the number that's in the parathenses with the x and flip it's sign (in this case to a negative) which means we have

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 this is the x coordinate of the vertex.

Next take the number that's being subtracted (or added) on the outside and leave that as is (-6)

This is the y coordinate

which means we have (-2,-6)

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5 0
3 years ago
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rewona [7]

Answer:

36 ways

Step-by-step explanation:

i just drew on a piece of paper nine songs and did the whole process of making them match and stuff :P

u welcome

4 0
3 years ago
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