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Q: When a number is decreased by 40 of itself itself the result is 54. What is the number?

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When 180 is decreased by 40% the result is 108.

When 40 is decreased by 30% the result is 28.

40

It can be.

Let that number be x. So we have, x - 0.3x = 28 0.7x = 28 7x = 280 x = 40 Check.

It is: 75 minus 40 = 35

x-40=36 , x=36+40 , x=76

Multiply 105 by .6 (60%) because if one subtracts 40% of something he/she is left with 60% of the number. 105 (.6)= 63

40% is 30, so decreasing by that amount would leave 45.

60 decreased by 40 is 20.

40 x 40 = 1,600

100% of any number is that number itself. So 100% of 40 is 40

The answer is 8. 8+32=40 and 8x5=40 ****** thx. =]

The number is 40

40

The number needed is 3 because 120/3 = 40

560 - 40% = 336

.6n - 1 = 23 .6n = 24 n = 40

39.92 is, itself, a number and so it is the nearest number.

To cube a number means simply to multiply that number by itself 3 times. To work out 40 cubed you would simply go:403 = 40 x 40 x 4040 x 40 = 1,6001,600 x 40 = 64,000403=64,000Therefore, 40 cubed equals 64,000.The phrase "multiply that number by itself 3 times." can cause confusion.Sometimes, instead of multiplying it thrice (the number itself) others, due to confusion, just multiply the number by 3... take note it's cube...What do you get if you multiply 40 by itself once?Nearly everyone would say 1,600 which is 40².Multiply that by 40 then seems to mean multiply the answer by 40, giving 64,000 which is then 40 multiplied by itself twice!Of course some people will say it doesn't matter how many times you multiply 40 by itself you'll always get 1,600.Just think of 40³ as meaning 3 40s multiplied together and you should avoid any problems.

60

Let the number be x:- 4x+40 = 100-x => 5x = 60 => x = 12 So the number is 12

1668

130.The answer is given by 182/1.4

A prime number is a number with two and only two factors: 1 (also known as unity) and itself. A composite number is a number with more than two factors; in other words, it has at least one factor besides 1 and itself. 40 has factors other than 1 and itself, so it is not a prime number. For example, it is divisible by 2 because it is an even number. Therefore, 40 is a composite number.