Explanation

-7m-[3n-{8m- (4n-10m)}] = ?

= - 7m - [ 3n - { 8m - (-10m +4n)]

= - 7m - [ 3n -( 8m +10m -4n )]

= -7m - (3n  - (18m -4n )

= -7m - (3n +4n - 18m)

= -7m - (7n - 18m)

= 11m  - 7n

Explanation

Let the five consecutive even numbers be 2(x – 2), 2(x – 1), 2x, 2(x + 1) and 2(x + 2)

Their sum = 10x = 440

x = 44 => 2(x – 2) = 84

Second least number of the other set = 2(84) – 121 = 47

This set has its least number as 46.

Sum of the numbers of this set = 46 + 47 + 48 + 49 + 50

= 48 – 2 + 48 – 1 + 48 + 48 + 1 + 48 + 2 => 5(48) = 240

Explanation

Explanation

Step-by-step:

$$frac{31 times 3}{100} = frac{93}{100}, quad frac{7}{5} = frac{140}{100}, quad 20 = frac{2000}{100}$$

Add all:

93+140+2000​/100=2233​/100=22.33

Explanation

Explanation

Dividing 3 by 4 gives 0.75, which is the decimal equivalent of 3/4.

Explanation

Explanation

According DMAS rule we first divided 4/4 then added 4 and found answer

4 + 4/4 =?

= 4 +1

= 5

Explanation

Hypotenuse of a right triangle is always the side opposite the right angle. 

Hypotenuse is the longest side in a right triangle.

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Explanation

Solve 

0.00085x95= 0.08075

250 +  0.08075 = 250.08075