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myrzilka [38]
3 years ago
5

35/50 into percentage

Mathematics
1 answer:
lara [203]3 years ago
6 0
35/50 as a percentage is 70%!
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Solve the following system of equations for all three variables.
xz_007 [3.2K]

Answer:

Step-by-step explanation:

-2x + 3y – 4z = 8    ----------------(I)

5x – 3y + 5z = -8    -----------------(II)

7x – 3y + 3z = 8 ------------------(III)

Add equation (I) & (II) and thus y will be eliminated

(I)        -2x + 3y – 4z = 8

(II)        <u>5x – 3y + 5z = -8</u>    {Add}

           3x          + z  = 0   ------------------------(A)

Multiply equation (II) by (-1) and then add with equation (III). Thus y will be eliminated.

(II) * (-1)         -5x + 3y - 5z = +8

                     <u>7x – 3y + 3z = 8</u>   {Add}

                     2x         -2z   = 16   ---------------(B)

Multiply equation (A) by 2 and then add. Thus z will be eliminated and we will get the value of x

(A) * 2          6x + 2z = 0

(B)                 <u>2x - 2z  = 16</u>   {Add}

                     8x         = 16

Divide both sides by 8

                             x = 16/8

                          x = 2

Plugin x = 2 in equation (A)

3x + z = 0

3*2 + z = 0

 6 + z = 0

       z = -6

Plug in x = 2 and z  = - 6 in equation (I)

-2x +3y - 4z = 8

-2*2 + 3y - 4*(-6) = 8

-4 + 3y + 24 = 8

     3y   + 20 = 8

               3y = 8 - 20

               3y = -12

                 y = -12/3

y = -4

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3 years ago
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A 24-ounce can of tomato sauce costs $3.60. What is the cost per ounces?
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.15 cents. You do the money divided by the ounces or weight.
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In the number 78.9 what digit is in the tenths places​
Nastasia [14]

Answer:

9

Step-by-step explanation:

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Find the distance between points.
SashulF [63]

Answer:

3 units

Step-by-step explanation:

Here, The distance between two points is 3 units

<u>-TheUnknownScientist</u>

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3 years ago
Terrance and his family are planning how to pay for his college education. The cost of tuition at his chosen college is $14,500
Finger [1]

Answer:

terrence will have to play 2900

Step-by-step explanation:

80% * 14500

14500-11600

2900

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