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____ [38]
2 years ago
10

If x and y are two rational numbers such that x < y , then ______ is a rational number in between x and y.

Mathematics
1 answer:
stich3 [128]2 years ago
3 0

Answer:

\dfrac{x+y}{2}

Step-by-step explanation:

Let first number be x and another number is y.

A rational number is a fraction that can be expressed in the form of x/y.

A rational number between x and y is given by :

R=\dfrac{x+y}{2}

So,

If x and y are two rational numbers such that x < y , then \dfrac{x+y}{2} is a rational number in between x and y.

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= 4. The sum of Ben's and David's ages is 62 yrs now. Five years from now David will be twice as old as Ben. How old is Ben now?
ki77a [65]

The age of ben and david is 24 and 38 years.

According to the statement

we have to find the age of the Ben now.

So,For this purpose, we know that the

One application of linear equations is what are termed age word problems. When solving age problems, generally the age of two different people (or objects) both now and in the future (or past) are compared.

From the given information:

The sum of Ben's and David's ages is 62 yrs now

And

Five years from now David will be twice as old as Ben.

Let the ben age is x

and the david age is y.

So, from given information:

x+y = 62  -(1)

5 years from now,

y = 2x  -(2)

put (2) in the (1) then

x+y = 62 -5

x+2x = 57

3x = 57

x = 19.

And the age of davud become

y = 2(19)

y = 38 years

So, five years from now the age of ben is 19 and david is 38 years.

And now the age of the ben and age of david is

Age of ben now = 19+5

Age of ben now = 24.

Age of david now  = 62 -24

Age of david = 38.

So, The age of ben and david is 24 and 38 years.

Learn more about age word problems here

brainly.com/question/13818690

#SPJ9

5 0
2 years ago
Reese is selling lemonade at the parade. He gets to keep 50% of the money he collects. A large lemonade is
lesya692 [45]

Answer:

.5(5I)+.5(2s)

Step-by-step explanation:

3 0
3 years ago
How would 350 percent be written as a simplified fraction
Sauron [17]
Divide by 100. 350/100=3.5 which is 3 and 1/2
4 0
3 years ago
Read 2 more answers
Is a triangle with the side lengths 15, 36, and 39 a right triangle?
Alex73 [517]

Answer:

yes

Step-by-step explanation:

8 0
2 years ago
Find the unknown length in the triangle. 15cm and 18cm
vova2212 [387]
-------------------------------------------------------------------------------------
Formula
-------------------------------------------------------------------------------------
a² + b² = c²

-------------------------------------------------------------------------------------
Find the missing leg.
-------------------------------------------------------------------------------------
15² + b² = 18²
b² = 18² - 15²
b² = 99
b = √99
b = 9.95 cm

-------------------------------------------------------------------------------------
Answer: 9.95 cm
-------------------------------------------------------------------------------------
5 0
3 years ago
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