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Dima020 [189]
4 years ago
11

A number,x, decreased by the sum of 2x and 5 represent what equation

Mathematics
2 answers:
Annette [7]4 years ago
7 0
We set up this expression that we have to simplify. Although, to make it an equation, we set the expression given equal to the variable y, making this a function too.
y=x-(2x+5)
distribute the negative symbol
y=x-2x-5
combine like terms
y=-x-5
and that is our final answer
gulaghasi [49]4 years ago
7 0

x- (2x+5)

I had that for homework too

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Step-by-step explanation:

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3 years ago
Can someone help me :(
White raven [17]

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19 ft.

Step-by-step explanation:

Pytahgorean theorm. A^2 + B ^2 = C^2

49 + 100 = 149

Square root the 149, which is ~12

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The larger of two numbers is twice the smaller increased by five. Find the two numbers if three times the larger exceeds double
melomori [17]

Answer:

Larger number is 13 and Smaller number is 4.

Step-by-step explanation:

Let the larger number be x.

Also let the smaller number be y.

We need to find the two numbers.

Given:

The larger of two numbers is twice the smaller increased by five.

framing in equation form we get;

x=2y+5 ⇒equation 1

Also Given:

Three times the larger exceeds double the smaller by 31

3x=2y+31 ⇒equation 2

Now Substituting the value of x from equation 1 in equation 2 we get;

3(2y+5) = 2y+31

Now Using Distributive property we get;

6y+15 = 2y +31

Combining the like terms we get;

6y-2y = 31-15

Now Using Subtraction property we get;

4y =16

Now Using Division property we get;

\frac{4y}{4}=\frac{16}{4}\\\\y =4

Now Substituting value of y in equation 1 we will find the value of x.

x=2y+5\\\\x = 2\times4+5\\\\x=8+5\\\\x=13

Hence Larger number is 13 and Smaller number is 4.

3 0
3 years ago
A set of 3 nonzero whole numbers that form the sides of a right triangle are called a Pythagorean ___.
victus00 [196]

A set of 3 nonzero whole numbers say (a,b,c) that form the sides of a right triangle and follow the pythagorous theorem

a^2+b^2=c^2\\

are called a Pythagorean Triple

The example of Pythagorean Triplet are

(3,4,5), (5,12,13) ,(8,15,17), etc.

Hence

A set of 3 nonzero whole numbers that form the sides of a right triangle are called a Pythagorean Triple.

4 0
3 years ago
2. A store owner paid $15 for a book. She marked up the price of the book by 60% to determine
dimulka [17.4K]

Answer

1500/60=25

$25

8 0
3 years ago
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