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Angelina_Jolie [31]
3 years ago
11

Lewis can run a 40-yard dash in 4.8 seconds. On average, how many feet does he run per second?

Mathematics
1 answer:
aksik [14]3 years ago
4 0

over 5 seconds, a guy that runs a 4.4 runs about 5 extra yards further than a guy running a 4.9

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Can someone help please?!?! Quickly
Yanka [14]

Part 1) Finding x

Note the double tickmarks for segments XY and YZ. This indicates the segments are the same length, which leads to point Y being the midpoint of segment XZ.

Therefore, XZ is twice as long as XY

XZ = 2*( XY )

XZ = 2*( 2x-1 )

XZ = 4x - 2

We also know that XZ = 2(3x-4) = 6x-8. Let's equate 4x-2 and 6x-8 and solve for x

6x-8 = 4x-2

6x-4x = -2+8

2x = 6

x = 6/3

x = 3

<h3>Answer is 3</h3>

=====================================

Part 2) Finding the length of YZ

The resut of part 1 (x = 3) is plugged into the equation for XY to get

XY = 2*x-1

XY = 2*3-1

XY = 6-1

XY = 5

Segment XY is 5 units long. So is segment YZ as these two segments are the same length (aka congruent).

<h3>Answer: 5</h3>

=====================================

Part 3) Finding the length of segment XZ

The answer from the previous part was 5. This doules to 5*2 = 10

-----

A longer way to get the same answer is to plug x = 3 into the XZ equation and we get...

XZ = 2*(3x-4)

XZ = 2*(3*3-4)

XZ = 2*(9-4)

XZ = 2*5

XZ = 10

and we get the same answer

<h3>Answer: 10</h3>
5 0
3 years ago
Here’s a graph of a linear function. Write the equation that describes that function. (Zoom in if blurry)
uranmaximum [27]

Answer:

Step-by-step explanation:

y=\frac{3}{2}x+1

8 0
2 years ago
PLEASE HELP
Dmitry_Shevchenko [17]

Answer:

2.5 betul tak........

Step-by-step explanation:

i/o

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3 years ago
Dan was at the beach for five days and found 28 seashells. He plans to give all of his seashells equally to his four friends. Ho
bekas [8.4K]
7 is the correct answer your welcome
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2 years ago
Given: 3x + y = 1.<br> Solve for y.<br> O y=-3x + 1<br> O y=-3x - 1<br> O y = 3x - 1
Ivan

Answer:

easy

Step-by-step explanation:

subtract 3x both side

3 0
3 years ago
Read 2 more answers
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