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sleet_krkn [62]
2 years ago
14

Plz solve this pic fast and correctly!!!

Mathematics
1 answer:
Leni [432]2 years ago
6 0

Answer:

mi = 45(hr)

  hr = mi/45

Step-by-step explanation:

Distance = 45 mph times the number of hours (time)   D = 45t  

time in hours = the number of miles (Distance) divided by 45 mph  t = D/45

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What is the best first step for solving the given system using substitution while avoiding fractions? =9x+4x=10 -9x+3y=3
aivan3 [116]

Answer:

  Solve for y in the second equation

Step-by-step explanation:

We assume your system is ...

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_____

<em>Comment on alternate solution</em>

We'd be tempted to solve the first equation for -9x and substitute for that.

  -9x = 10 -4y

  (10 -4y) +3y = 3 . . . . . substitute for -9x

  -y = -7 . . . . . . . . . . . . . simplify, subtract 10

  y = 7 . . . . . . . . . . . . . . multiply by -1

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3 years ago
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Step-by-step explanation:

Putting value of w

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