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KonstantinChe [14]
4 years ago
12

Jess and Wes used to race each other when they were younger. Jess could cover 8

Mathematics
1 answer:
marshall27 [118]4 years ago
5 0

Answer:

160 meters

Step-by-step explanation:

Let call dj  distance run by  Jess    and   dw  distance run by Wes

By Jess courtesy Wes will be  60 meters ahead of Jess

Let call t the time in which both runners are at the same point, which in fact is when both distances are equal

dj  =  8 m/sec * t        and    dw  =  60  +  5 m/sec * t

Then we make  dj = dw

8*t  =  60 + 5*t

3*t  =  60

t = 20 sec

Now passed 20 sec  dj   =   8 * 20   = 160 m

and   dw = 60 + 5*20   dw  =  160 m

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Answer:

109 metres

Step-by-step explanation:

1. Do 15+36+29 which equals 80

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3 years ago
Solve 7x-2y=11 for y
Leni [432]

Answer:

y = 7/2x -11/2

Step-by-step explanation:

7x-2y=11

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3 years ago
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aliina [53]
First, conceptually understand what an inverse function is, it makes solving it very intuitive.  An inverse function is simply a function which has points (y,x) for every point (x,y) of the parent function.  So you are essentially taking all points of the parent function and switching the x and y coordinates for each.  Those switched coordinates are produced by the "inverse function".

Mathematically then, finding the inverse function is a matter of solving for x and then switching the variable labels.  In this case:

y=2x+1  subtract 1 from both sides

y-1=2x  divide both sides by 2

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y=(x-1)/2  so

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6. You roll a 6 sided die and flip a coin. What is the
MakcuM [25]

Answer:

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2 years ago
What is X I need help i dont know how to do this
Anit [1.1K]

Answer:

x = 75

Step-by-step explanation:

Triangle BDH

The angle must add to 180 degrees

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