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vesna_86 [32]
3 years ago
6

18 is 40% of what number​

Mathematics
1 answer:
jarptica [38.1K]3 years ago
5 0
45...
because it is 45
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What is the simplified expression
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7y - 4x

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there are 640 students in one school. How many boys are there if it is known that 1/4 of the number of girls is equal to one six
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Read 2 more answers
1) write a system on equations with the solution (2, -3). Work the problem out using the substitution method
solmaris [256]

The system of the equations that have the solution of (2, -3) are given below.

3x + 2y = 0 and 3y = 2x - 13

<h3>What is the linear system?</h3>

A Linear system is a system in which the degree of the variable in the equation is one. It may contain one, two, or more than two variables.

Write a system of equations with the solution (2, -3).

From a single point, an infinite number of lines pass through this point.

Let one line is passing through the origin. Then the equation of the line will be

\rm y  = \dfrac{-3}{2} (x)\\\\y = -1.5x

And the other line is perpendicular to the line which is passing through the origin and a point (2, -3).

\rm y = \dfrac{2}{3} x + c

Then this line also passes through a point (2, -3). Then the value of c will be

\rm -3 = \dfrac{2}{3} \times 2 + c\\\\c \ \  = -13

Then the equation of the line will be

3y = 2x -13

More about the linear system link is given below.

brainly.com/question/20379472

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2 years ago
What is the equivalent property of 7(x+3)
Margarita [4]

Answer:

7x+21

Step-by-step explanation:

4 0
3 years ago
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