1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
padilas [110]
3 years ago
8

How many pairs of whole numbers have a sum of 40

Mathematics
1 answer:
Ahat [919]3 years ago
3 0
It is 20 
39+1
38+2
37+3
36+4
35+5
<span>Until you get to 20+20</span>
You might be interested in
4x−3y=18 Step 2 of 2 : Determine the missing coordinate in the ordered pair (?,12) so that it will satisfy the given equation.
Natasha_Volkova [10]

Answer:

13.5

Step-by-step explanation:

The point with the missing coordinate is (?, 12), so the value of  y  is 12.  Plug 12 into the equation in the place of  y.

4x - 3(12) = 18

4x - 36 = 18

4x = 54

x = 54/4 = 13.5

3 0
2 years ago
Hey this is my first post, does anyone know how to do this and find V?
Dvinal [7]

Answer:

16

Step-by-step explanation:

8/1/2

8 divided by 1/2

8 x 2/1 = 16

8 0
2 years ago
Read 2 more answers
How to solve for y if  the equation is y=5/2x + 5 if x is zero
Karolina [17]
y=\dfrac{5}{2}\cdot0+5\\&#10;y=0+5\\&#10;y=5
5 0
3 years ago
Read 2 more answers
14, 15 and 16 please
WARRIOR [948]
14). (Take π value as 22/7)
circumference = 66in
2πr = 66in
2×22/7×r = 66
r = 66×7/2×22
r = 21/2in
d = 2r => d = 2×21/2
therefore diameter of the circle = 21in

15). (Take π value as 3.14)
Circumference = 3.14m
2πr = 3.14m
2×3.14×r = 3.14
r = 3.14/3.14×2
r = 1/2m
Therefore the radius of the circle = 0.5m

16). (Take π value as 22/7)
Circumference = 33km
2πr = 33km
2×22/7×r = 33
r = 33×7/2×22
r = 21/4
d = 2r
d = 2×21/4
d = 21/2km
Therefore the diameter of the circle = 10.5km
4 0
3 years ago
Y^2 - 12y + 27 / y^2 - 6y - 27 <br> simply the rational equation.
Ulleksa [173]

The simplified rational expression is (y - 3)/(y + 3). Where y ≠ -3.

<h3>How to simplify a rational expression?</h3>

A rational expression is in the p/q form. Where p and q are polynomial functions.

To simplify this rational equation,

  • Factorize the polynomials in both numerator and denomiantor.
  • Cancel out common factors if any.
  • If the denominator and the numerator have no common factors except 1, then that is said to be the simplest form of the given rational expression.

<h3>Calculation:</h3>

The given rational equation is

\frac{y^2 - 12y + 27 }{y^2 - 6y - 27}

Factorizing the expression in the numerator:

y² - 12y + 27 = y² - 9y - 3y + 27

⇒ y(y - 9) - 3(y - 9)

⇒ (y - 3)(y - 9)

Factorizing the expression in the denominator:

y² - 6y - 27 = y² - 9y + 3y - 27

⇒ y(y - 9) + 3(y - 9)

⇒ (y + 3)(y - 9)

Since they have (y - 9) as the common factor, we can simplify,

\frac{y^2 - 12y + 27 }{y^2 - 6y - 27}=\frac{(y-3)(y-9)}{(y+3)(y-9)}

⇒ (y - 3)/(y + 3) where y ≠ -3(denomiantor)

Here there are no more common factors except 1; this is the simplest form of the given rational expression.

Learn more about simplifying rational expressions here:

brainly.com/question/1928496

#SPJ9

3 0
2 years ago
Other questions:
  • T (2,10) is the midpoint of CD. The coordinates of D are (2,13). What are the coordinates of C?
    7·1 answer
  • How many times do 567 go into 5
    14·2 answers
  • C= a/(a+1 C= a/(a+12) ∙ A
    11·1 answer
  • HELP ME IM LOST REALLY IM IN LALA LAND RIGHT NOW
    10·2 answers
  • What part of the circle is labelled as x?
    6·1 answer
  • A purse is on sale for $146.47 after a 30% discount. What was the original price of the purse?
    14·1 answer
  • Can someone help me​
    10·1 answer
  • Sameen bought 2 1/5 pounds of carrots for $6.60. At that rate how much would 1 pound of carrots cost.
    7·2 answers
  • You want to buy some rice. An 8-ounce package costs $2.72. A 12-ounce package costs $4.32. A
    8·1 answer
  • Please help I don't understand i'm in the lowest class.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!