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Diano4ka-milaya [45]
3 years ago
15

7) -6x + 6y=6 -6x + 3y=-12

Mathematics
1 answer:
Gre4nikov [31]3 years ago
3 0

Answer:

(5,6)

Step-by-step explanation:

-6x+6y=6

-6x + 3y =-12

Multiply the first equation by -1

6x-6y=-6

Add this to the second equation

6x-6y=-6

-6x + 3y =-12

---------------------

       -3y = -18

Divide each side by -3

-3y/-3 = -18/-3

y =6

Now we need to find x

6x - 6y = -6

6x -6(6) = -6

6x -36 = -6

Add 36 to each side

6x-36+36 = -6+36

6x = 30

Divide each side by 6

6x/6 = 30/6

x =5

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{\bf \red {\huge{answer : }}}

The money increased from 600 pounds to 621 pounds.

621 - 600 = 21

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4 0
2 years ago
What is the slope of the line that passes through the points (-3, -3) and (-9, 5) Write your answer in simplest form.
BabaBlast [244]

Step-by-step explanation:

The slope of the line is -4/3.

3 0
2 years ago
Timothy is putting fertilizer on a field after planting some crops. The directions on the barrel state to use 0.75 quarts for ea
Rzqust [24]

Answer

Find out the how much fertilizer will Timothy need for two fields, one that is 22.5 acres and one that is 38.25 acres .

To proof

As given

Timothy is putting fertilizer on a field after planting some crops.

The directions on the barrel state to use 0.75 quarts for each acre of land.

Timothy need for two fields, one that is 22.5 acres and one that is 38.25 acres

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Fertilizer used for the 22.5 acres field = 22.5× 0.75

                                                               = 16.875 quarts

Second case

Fertilizer used for the 38.25 acres field = 38.25× 0.75

                                                                  = 28.6875 quarts

Total fertilizer used in two field =  16.875 quarts + 28.6875 quarts

                                                    = 45.5625

                                                    = 45.563 quarts ( approx )

Hence proved



                                                                   



3 0
3 years ago
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eduard

Answer:

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4 0
2 years ago
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Answer: 5 Seconds

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Given that initial height = 400feet

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The waste will hit the ground at when h(t) = 0

substitute

0 =  - 16t^2 + 400

16t^2 = 400

t² = 400/16

t² = 25

t = √25

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4 0
2 years ago
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