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Inessa05 [86]
3 years ago
5

A construction crew needs to build a road that will be 20 miles long. The crew already completed a stretch that is 6.44 miles lo

ng and another that is 8.62 miles long. How much more road does the construction crew need to build? 2.18 miles 4.94 miles 11.38 miles 13.56 miles
Mathematics
2 answers:
Mademuasel [1]3 years ago
8 0

Answer:

Your answer would be (B) 4.94. Hope this helped!

6.44 + 8.62 = 15.06

20 - 15.06 = 4.94

Step-by-step explanation:

Hope this helps : )

Elden [556K]3 years ago
7 0

Answer:

4.94 miles

Step-by-step explanation:

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jek_recluse [69]

2\ln x=6.8\\ \ln x=3.4\\ x=e^{3.4}\approx29.96

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3 years ago
Solve the given linear Diophantine equation. A) 12x+9y=15 B) 8x+10y=17
Nookie1986 [14]

Answer:

  A) (x, y) = (2-3n, 4n-1) . . . . for any integer n

  B) no solution

Step-by-step explanation:

A) All coefficients have a common factor of 3, so any solution of the reduced equation will be a solution of the given equation. The reduced equation is ...

  4x +3y = 5

A graph of the original shows (x, y) = (2, -1) is a solution. Then other solutions will be those values with a multiple of 4 added to y and the same multiple of 3 subtracted from x:

  (x, y) = (2 -3n, 4n -1)

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B) The left side of the equation is an even number for any integer values of x and y. The right side is an odd number. There can be no solution.

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3 years ago
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AnnZ [28]

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7 0
3 years ago
Y=x +5<br> 5x + 2y=1<br><br> Can you show the steps thanks
lubasha [3.4K]

Answer:

(-9/7,-26/7)

[more detailed at the bottom of the explanation]

Step-by-step explanation:

I am assuming that this is a system of equations...

So, knowing that y is equal to x + 5, you would plug that in the second equation and find x. Then you would plug x and find y.

—————

Step 1)

Equation 1:

y = (x + 5)

Equation 2:

5x + 2y = 1

Equation 2 can also be written as:

5x + 2(x+5) = 1

I wrote x+5 instead of y because the first equation tells us that y is equal to x + 5.

—————

Step 2)

Solve for x .

5x + 2(x+5) = 1

5x + 2x + 10 = 1

7x + 10 = 1

7x = 1 - 10

7x = -9

x = -9/7

—————

Step 3)

Plug the x value back in the first equation.

y = -9/7 + 5

y = -26/7

—————

Solution:

x = -9/7

y = -26/7

In ordered pair form:

(-9/7,-26/7)

————— ————— —————

Hope this helps !!!!!!!

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3 years ago
Mujer culona
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Mujer culona mujer culona mujer culona
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3 years ago
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