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miskamm [114]
2 years ago
8

What is the answer to this question?

Mathematics
1 answer:
irina [24]2 years ago
8 0

Answer:

1. \frac{33}{40}  

2. \frac{19}{35}

Step-by-step explanation:

1. (\frac{5}{8} * \frac{5}{5}) + (\frac{1}{5} * \frac{8}{8}) = \frac{33}{40}

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If Sabrina has seven letters, with no repeats, how many possible arrangements are there with the seven letters.
MissTica

Answer:

5040

Step-by-step explanation:

There are 7 possibilities for the first spot, 6 for the second, etc.

7*6*5*4*3*2*1=5040

3 0
2 years ago
2x divided by x+5 less than or equal to 0
coldgirl [10]
It is more than 0, because you cancel the x, and you get 2+5, which is 7
4 0
3 years ago
What is the slope of the line through the points (1,5) and (-2,-4)?
olasank [31]

Answer:

slope = 3

Step-by-step explanation:

Use the coordinates of the points to determine the slope.

3 0
2 years ago
Over 75 percent of the energy produced in France derives from nuclear power, while in Germany it is just over 33 percent.
djverab [1.8K]

Answer:

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Step-by-step explanation:

7 0
2 years ago
Solve the system of equations by elimination.<br> 2x - y + 3z=-1<br> x + 2y - 4z=-1<br> y – 2z=0
MrRa [10]

Answer:

x = -1, y = 2 and z = 1

Step-by-step explanation:

The given system of equations are :

2x - y + 3z= -1  ....(1)

x + 2y - 4z = -1  ......(2)

y – 2z = 0  .....(3)

Equation (3) can be written as :

y = 2z

Use y = 2z in equation (2)

x + 2(2z) - 4z = -1

x + 4z - 4z = -1

x = -1

Put the value of x in equation (1) :

-2 -y +3z = -1

-y+3z = 1 ....(4)

Adding equation (3) and (4)

y-2z+(-y+3z)=1

z = 1

Now put z = 1 in equation (4)

-y+3=1

-y = -2

y = 2

Hence, the values of x,y and z are -1, 2 and 1 respectively.

6 0
3 years ago
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