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Temka [501]
3 years ago
7

7) One track coach wants his athletes to race 5 miles around a track to measure how fast

Mathematics
1 answer:
Lady bird [3.3K]3 years ago
5 0
Five laps? I don’t know if you meant to put that the track is a mile around, but if the track is a half mile around, an athlete would have to run 10 laps around the track to run 5 miles.
X=5/y, so x would be how many laps the athletes run, and y would be the length of the track. Hope this helps
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How much work is done lifting a 5 kg ball from a height of 2 m to a height of 6 m? (Use 10 m/s for the acceleration
Sedbober [7]
<h2>Explanation:</h2>

In physics, work is defined force that causes displacement. So this can be expressed by the following equation:

W=Fs

Where:

F:Force \\ \\ s:Displacement

The force can be found as:

F=ma \\ \\ F=5(10)=50N

And for the displacement:

s=6-2=4m

The force (weight) is down and the displacement is up, then the work must be negative. So:

W=-(50)(4) \\ \\ \boxed{W=-200J}

8 0
3 years ago
Which graph represents the solution set of -2y &gt; 7x + 4?
Firdavs [7]

The equation of a line in point-slope form is expressed as:

y = mx + b

  • m is the slope of the line
  • b is the y-intercept

Given the inequality -2y > 7x + 4, this can also be expressed as:

-2y > 7x + 4

y < -7/2x -4/2

y< -7/2x - 2

This shows that the line will be a dashed line and cuts the y-axis at y= -2

Learn more on inequality graph here: brainly.com/question/11234618

4 0
2 years ago
gary deposits 3700 in an account that pays 2.15% simple interest he keeps the money in the account for 3 years but doesn’t make
zzz [600]

Answer:

238.65

Step-by-step explanation:

To find the simple interest we use the formula:

A = P(1 + rt)

Let's break down all the variables that we have.

P = 3,700

r = 2.15% or 0.0215

t = 3

So let's put all our variables into the formula.

A = P(1 + rt)

A = 3,700(1 + (0.0215)(3))

A = 3,700(1 + 0.0645)

A = 3,700(1.0645)

A = 3938.65

Gary will have a total of 3938.65 in his account after 3 years. Now to find how much he made in interest, we simply subtract the total after 3 years to his initial amount.

Interest = 3938.65 - 3700

Interest = 238.65

4 0
3 years ago
Flat screen tv cost $1,400 the tv is on sale 35% off what is the discounted price on the tv
guajiro [1.7K]
Easy,

finding the complement (net price) subtract the discount percentage by 100% to get the net price percentage. Net price equals the list price minus the discount price.

100%-35%=65%

Multiply the list price ($1,400) by the complement.

Net price= 0.65(1,400)=$910

Thus, the new price is, $910.
7 0
3 years ago
Read 2 more answers
8.
Viktor [21]

Answer:

The choice C.94

Step-by-step explanation:

2(3( {4}^{2}  + 1)) -  {2}^{3}  \\  \\ 2(3(16 + 1)) - 8 \\  \\ 2(3(17)) - 8 \\  \\ 2(51) - 8 \\  \\ 102 - 8 = 94

3 0
2 years ago
Read 2 more answers
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