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antiseptic1488 [7]
3 years ago
11

2x - y = 5 x + 3y = 7 What is the value of the system determinant? A) 5 B) 6 C) 7

Mathematics
1 answer:
tatiyna3 years ago
7 0

Answer:

I think it is 6

Step-by-step explanation:

2x-y=5x+3y=7

   -3y     -3y

2x-4y=5x=7

-2x     -2x

-4y=3x=7

-4+3=-1=7

7-1=6

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Determine the least number of patties that will share equally among groups og 6, 9, 12
kotykmax [81]

Answer:

72.

Step-by-step explanation:

Given a group of 6, 9 and 12.

We are to determine the least number of patties that will be shared equally among the groups.

This we do by determine the Least common multiple of the three numbers.

6=2 X 3\\9 = 3 X 3\\12 =2 X 2 X 2\\L.C.M.=2^3X3^2=72

Therefore, the least number of patties that can be shares equally among groups of 6, 9 and 12 is 72.

5 0
4 years ago
Sara bought 30 T-shirts at a clothing store,20% of the T-shirts were blue and 1/2 of the T-shirts were black.The rest of the T-s
kherson [118]
Black = 15
blue= 6

15 + 6 = 21

30-21 = 9

white t shirts = 9
4 0
3 years ago
There are white, blue, and red boats in a marina. Two-thirds of the boats in the marina are white, five-eighths of the remaining
sammy [17]
X = total boats
2/3x are white....so the remaining boats = 1/3x
5/8 of the remaining boats are blue.....5/8 * 1/3 = 5/24x are blue

2/3 + 5/24 = 16/24 + 5/24 = 21/24 are blue and white......so 3/24 are red
3/24x = 6
x = 6 * 24/3
x = 144/3
x = 48 total boats in the marina <==

2/3(48) = 32 white
5/24(48) = 10 blue
3/24(48) = 6 red


6 0
3 years ago
Change the following expression into a single fraction: 3ab+2b^2/ab-a+2b/a+a-2b/b
ella [17]

Answer:

c-5

Step-by-step explanation:

3 0
3 years ago
Please help me with this question
jeyben [28]

Answer:

37

add all of them together then divide it by two

4 0
3 years ago
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