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ipn [44]
3 years ago
7

In the "magic square" at the right, the four numbers

Mathematics
2 answers:
romanna [79]3 years ago
6 0

Answer:

15

Step-by-step explanation:

Alja [10]3 years ago
6 0
The value of N is 15!
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The equation of a line is 4x+y=13 solve the equation for y
Salsk061 [2.6K]

Answer:

y = 13 - 4x

Why?

4y +y = 13

Subtract 4x from both sides

4x+y-4x = 13 - 4x

Simplify

Y= 13 - 4x

Have a good day

3 0
3 years ago
Write an equation to model this proportional relationship, where x represents the length of the rectangle and y represents the w
Kay [80]

When Area of rectangle is constant, then the length x is inversely proportional to the width y of the rectangle.

x\propto  \frac{1}{y}

We know that the area of a rectangle is given by the product of the length and width of the rectangle.

Area = Length*Width

In this given problem,

The length of the rerectanglctangle is represented by x

and the width of the rectangle is represented by y

If the area of the rectangle is represented by A now.

So by the formula,

A = x*y

When A is constant then,

x = A/y

\therefore x \propto \frac{1}{y}

So from the above calculation we can conclude that about relation between length and width that,

"When Area of rectangle is constant, then the length x is inversely proportional to the width y of the rectangle."

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5 0
2 years ago
Is graphite all of the following?
AnnZ [28]

Answer: Yes!

Step-by-step explanation:

Yes, graphite is composed of 100%carbon. With this, can we say that graphite is an element or compound of carbon? Compound is composed of two or more elements combined in a substance in definite proportions, in the form of molecules held together by chemical bonds.

6 0
3 years ago
the area of the top of a rectangular table is 323 square feet. If the length of the table is 19 feet , what is the width
sergejj [24]

Answer:

hello :

the area is : A= w ×l     ...   w :  the width    l : the length

A = 323     l = 19     w ?

l = A/w

l = 323/ 19

l = 17 feet


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3 years ago
Peter and Amanda collect seashells on a beach. They both had 0 seashells when they started. Peter collects 5 seashells every min
ankoles [38]

Answer:

5x+8y

Step-by-step explanation:

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3 0
3 years ago
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