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yaroslaw [1]
4 years ago
13

In a two-digit number, the ones digit is twice the tens digit. If

Mathematics
1 answer:
Darya [45]4 years ago
4 0

Answer:

48

Step-by-step explanation:

(8/4=2) = (4*2=8)

In words, 4 times 2 is 8.

4 reversed is 84. 84 - 48 = 36.

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Think about the properties of a square. Is a square also a rhombus? Is it also a rectangle? Answer each question and explain you
djyliett [7]

Answer:

Properties of rhombus

. all the properties of a parallelogram( apply the ones that matter hair are parallel sides opposite angles congruent and consecutive angles are supplementary)

. all sides are congruent by definition

. the diagonals bisect the angles

. the diagonals are perpendicular bisectors of each other

Properties of rectangle

. all the properties of parallelogram apply (the ones that matter hair are parallel sides, opposite sides are congruent, and diagonals bisect each other)

. all angles are right angles by definition

. the diagonals are congruent

Properties of square

. all the properties of a rhombus apply( the ones that matter have a parallel sides diagonals are perpendicular bisector of each other and diagonals bisect the angles)

. All the properties of rectangle apply (the only one that matter where is diagonals are congruent)

. All angles are right angles by definition

Hope it will help you

Step-by-step explanation:

4 0
4 years ago
Please help 20 points!
MrRissso [65]

Answer:

9 5/6 + 1 1/4 - 2 11/12 = 14

-37 7/8 - 20 -3 1/4 = 14 5/8

17/3 - 2 19/30 +5/2 = 10 4/5

23.1 + 1 7/10 - 18 1/5 = 66/10

Step-by-step explanation:

6 0
3 years ago
Round to the nearest dollar. Matthew makes $68,000 per year, what is his monthly salary, 25% of monthly salary and 30% of monthl
labwork [276]
Monthly salary = $5667
25% of monthly salary = $1417
30% of monthly salary = $1700
5 0
4 years ago
Read 2 more answers
What is the inverse of the function f(x) = 2x + 1?
spin [16.1K]

Answer: X minus 1 over 2

Step-by-step explanation:

Use an inverse function calculator

7 0
4 years ago
Read 2 more answers
LN bisects KLM into two congruent angles measuring (3x-4) and (4x-27). Find klm
Vanyuwa [196]
Answer:  The m ∡KLM is:  130° .
___________________________________________________________
Explanation:
__________________________________________________________
(3x − 4) = (4x − 27) ;  (Since these are "bisected, congruent angles", they are equal).

⇒ 3x − 4 = 4x − 27 ;

⇒ Subtract "4x" from  EACH SIDE of the equation; and add "4" to EACH SIDE of the equation;

⇒    3x − 4 − 4x + 4 = 4x − 27 − 4x + 4 ;

to get:

⇒  - 1x = -23 ;

⇒  Divide EACH SIDE of the equation by "-1" ; to isolate "x" on one side of the equation; and to solve for "x" ;

⇒  -1x / -1 = -23 / -1 ;  to get:

⇒  x = 23;
___________________________________
To find m ∡KLM :

m ∡ KLM = (3x − 4) + (4x − 27) ;

{Note:  Remember:  (3x − 4) = (4x − 27) } ;

So, plug in our solved value for "x" ; which is: "x = 23" into one of the expressions for one of the congruent angles.

Let us start with: "(3x − 4)" . 

(3x − 4) = 3x − 4 = 3(23) − 4 = 69 − 4 = 65 .

By plugging in our solve value for "x" ; which is: "x = 23" ; into the expression for the other congruent angle, we should get: "65" ;

Let us try:

(4x − 27) = 4x − 27 = 4(23) − 27 = 92 − 27 = 65.  Yes!
________________________________________________
So to find m ∡KLM:

(3x − 4) + (4x − 27) = 65 + 65 = 130° .
_______________________________________________
Alternate method:
_______________________________________________
At the point which we have:
_______________________________________________
To find m ∡KLM :

m ∡ KLM = (3x − 4) + (4x − 27) ; and at which we have our solved value for "x" ; which is:  "x = 23" ;
_______________________________________________

We can simply plug in our known value for "x" ; which is:  "23" ; into the following:
m ∡ KLM = (3x − 4) + (4x − 27) = [(3*23) − 4] + [(4*23) − 27] ;
                                                   = (69 − 4) + (92 − 7) = 65 + 65 = 130° .
_____________________________________________________________
{Note:  Using this method, we determine that each angle is equal; that is, "65° ".}.
______________________________________________________________
4 0
3 years ago
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