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USPshnik [31]
4 years ago
5

Two numbers have a sum of 21, and 3

Mathematics
1 answer:
Oksi-84 [34.3K]4 years ago
4 0

Answer:

Step-by-step explanation: let the first number be x and the second number be y

according to the condition given

x+y=21

3x-y=43

using elimination method

3x+3y=63

3x-y=43

subtacting both the equations

4y=20

y=20/4

y=5

substituting value of y in eq 1

x+5=21

x=21-5

x=16

therefore x=16 and y=5

the two numbers are 16 and 5

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So examle

if reatil is 16, then tax is 1,
if reatil is 32, then tax is 2

proprtional is if
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16/1=32/2
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true

it is proportional
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3 years ago
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Answer:

15+7=22

Step-by-step explanation:

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The area of a rectangle is represented by the expression 6x³y5. Which of the following could be the
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The length and width of the rectangle are: 2x^2y^2 , 3xy^3

<h3>What is the area of the rectangle?</h3>

The area of the rectangle is the product of the length and width of a given rectangle.

The area of the rectangle = length × Width

The area of a rectangle is represented by the expression 6x^3y^5.

The area of the rectangle = 2x^2y^2 \times 3xy^3

                                          = 6x^3y^5

So, the length and width of the rectangle are: 2x^2y^2 , 3xy^3

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7 0
2 years ago
A sofa originally selling $795 is being discounted by 25%. How much is the discount?
professor190 [17]

Answer:

198.75

Step-by-step explanation:

Multiply 795 by .25

$795 - $198.75= new price

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3 years ago
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what is the equation of a line that passes through the points (0,5) and (4,8)? write your answer in slope intercept form.
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