Can you help me with this math problem and tell me how to do it?

Mathematics

1 answer:

Gemiola [76]3 years ago

7 0

Let the number of songs Lou has = X

Kelly has 4 times as many as Lou, which would be written as 4X

Tiffany has 6 times as many songs as Lou, which would be written as 6X

The total number of songs = 682

You need to add all three people together to equal 682

So you would get:

X + 4X + 6X = 682 songs.

Combine all like terms ( 6x + 4x + X = 11x)

11x = 682

Now to solve for X divide both sides by 11:

x = 682 / 11 = 62

Lou = x = 62 songs.

Kelly = 4x = 4(62) = 4*62 = 248 songs.

Tiffany = 6x = 6(62) = 6 *62 = 372 songs.

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Dissecting the information:

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I FOUND YOUR COMPLETE QUESTION IN OTHER SOURCES.
PLEASE SEE ATTACHED IMAGE.

Part 1:

we must see in the graph the axis of symmetry of the given parabola.
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Answer:
The height of the javelin above the ground is symmetric about the line t = 2 seconds:

Part 2:

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To do this, just look at the graph.
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Therefore, a height of 20 feet is again reached in 3 seconds.
Answer:
The javelin is 20 feet above the ground for the first time at t = 1 second and again at t = 3 seconds