Explanation

69(a+b) = 69a+69b (by descriptive law)

(69+a)b = 69b+ ab

then,

69a+69b = 69b + ab

69a = ab

b = 69 (dividing both sides by a)

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 ND1-1-2023

Explanation

Solution:

To avoid the consuming calculation, factorize the given polynomial

x2 + 14x + 24 = x2 + 12x + 2x + 24 = x(x + 12) +2(x + 12)

=> (x + 2) (x + 12)

Subtracting the value of x in above

=> (854 + 2) ( 854 + 12) = (856) (866)

=> 741,296

*****

 ND1-1-2023

Explanation

 A constant is fixed numerical value and its value cannot be changed hence we can say a constant is a symbol having a fixed numerical value.

AGM 24-12-2022

Explanation

Work is done every time a force moves something over a distance. By multiplying the force by the distance traveled in the direction of the force, you can calculate the energy transferred or the work done. Energy transmitted = work completed = force x distance traveled in the direction of  force.

AGM 25-12-2022

Explanation

= (2+3²) + (3+2³)

= 2 + 9 +3 + 8 

= 22

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ND04-12-2022

Explanation

Firstly, subtract 2x from both sides of the equation to obtain 3x+3=9.

Then subtract 3 to achieve 3x=6.

Finally, divide both sides by 3 to obtain the final answer of x=2.

5x-3=2x-9

5x-2x=9+3

3x=12

x= 12/3

x=4

Explanation

It can be written as 7/13

And for percentage, we have to multiply with 100 So, 7/13 * 100 = 700/13 =53.00

Given answers near to 52%

Explanation

1 houre = 3600sec

                 =1/100 * 3600

                   =36 km.

SH31-8-2023

Explanation

SH31-8-2023

Explanation

Step-by-step explanation:

Let x , x+1, x+2, x+3 , x+4 are first consecutive numbers

Sum of five consecutive numbers = 60 (Given)

=> x+(x+1)+(x+2)+(x+3)+(x+4) = 60

=> 5x + 10 = 60

=> 5x = 60 - 10

=> 5x = 50

/* Divide each term by 5, and we get

=> x = 50/5

=> x = 10

Therefore,

First number = x = 10