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mamaluj [8]
3 years ago
8

Twice a number k plus the quantity s minus 2

Mathematics
1 answer:
grigory [225]3 years ago
8 0

Answer:

2k+s-2

im assuming

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because a dilation changes the size of the shape, but it’s still similar because it’s proportional to the original triangle.
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PLEASE HELP! ( Drag and Drop USA Test Prep )
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-4x+7>= 27
-4x >= 20
x <= -5

answer is B
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3x-10<-25
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3 years ago
Emilys family loves to work together in the garden. They have a slight preference for flowers, as 60% their plants are flowers a
Alex73 [517]

Answer:

Number of Flowering Plants = 30

Number of vegetable plants = 20

Step-by-step explanation:

Im assuming the question is asking for the number of vegetables and number of flowers.

We need to convert 60% and 40% to decimal. The process is dividing by 100. Hence,

60% = 60/100 = 0.6

and

40% = 40/100 = 0.4

We multiply these with the total number to get number of vegetable and flowering plants.

So,

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Number of vegetable plants = 0.4 * 50 = 20

7 0
4 years ago
The high school decided to buy
denpristay [2]
The discount would be $185.25
7 0
3 years ago
A chemist mixes a 10% hydrogen peroxide solution with a 25% hydrogen peroxide solution to create 30 liters of a 15% hydrogen per
iris [78.8K]
Let x represent the amount of 10% solution used.
Let y represent the amount of 25% solution used.

Since 30 liters of 15% solution are being made, our first equation is
x + y = 30

Now we deal with the actual peroxide in each solution.
x liters of 10% peroxide contain 0.1x liters of peroxide.
y liters of 25% peroxide contain 0.25y liters of peroxide.
30 liters of 15% peroxide contain 0.15 * 30 = 4.5 liters of peroxide.
From this information, we can write our second equation.

0.1x + 0.25y = 4.5

We have a system of equations:

x + y = 30
0.1x + 0.25y = 4.5

Multiply the first equation by -0.25 and add to the second equation.

-0.25x - 0.25y = -7.5
   0.1x + 0.25y = 4.5
---------------------------
-0.15x              = -3

x = 20

Answer: 20 liters


5 0
4 years ago
Read 2 more answers
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