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AURORKA [14]
3 years ago
14

You buy a used car for $6500. The monthly cost of owning the car (including insurance, fuel, maintenance, and taxes) averages $3

50. Write and equation that models the total cost of buying and owning the car.
Mathematics
1 answer:
pashok25 [27]3 years ago
4 0
Y = 350x + 6500

where x = the number of months you own the car and y = the total cost of buying and owning the car.

This is true because each month, it costs 350, so finding the monthly cost would be multiplying 350 by the number of months, or x.  The + 6500 is there because in addition to the monthly cost, the original price was $6500.
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what is the ratio for the volumes of two similar spheres given that the ratio of their radii is 4:7 A.)343:64 B.)49:16 C.)16:49
quester [9]

Answer:

Volume of the similar sphere be 64 :343 .

Option (D) is correct.

Step-by-step explanation:

Formula

Volume\ of\ a sphere = \frac{4}{3}\pi r^{3}

As given

The volumes of two similar spheres given that the ratio of their radii is 4:7 .

Let us assume that the x be the scalar multiple of the radi .

Radius of first sphere = 4x

Radius of second sphere = 7x

Putting the values in the formula

Volume\ of\ first\ sphere = \frac{4}{3}\pi\times 4x\times 4x\times 4x

Volume\ of\ first\ sphere = \frac{4}{3}\pi\times 64x^{3}

Volume\ of\ second\ sphere = \frac{4}{3}\pi\times 7x\times 7x\times 7x

Volume\ of\ second\ sphere = \frac{4}{3}\pi\times 343x^{3}

Thus

\frac{Volume\ of\ first\ sphere}{Volume\ of\ second\ sphere} = \frac{\frac{4\pi\times 64x^{3}}{3}}{\frac{4\pi\times 343x^{3}}{3}}

\frac{Volume\ of\ first\ sphere}{Volume\ of\ second\ sphere} = \frac{64}{343}

Therefore the ratio of the volume of the similar sphere be 64 :343 .

Option (D) is correct .

5 0
3 years ago
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The equation would be (61.99-10.99)/4.25= x
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I need help on this question, can someone please help with this??
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Answer:

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Step-by-step explanation:

Thats the only one that made sense to me

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Please see the attached picture.

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