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BeauIt's 154. The easiest way to multiply a number is to get it as close to a multiple of 10 as possible. In our case it's 20 x 7, which is 140. Then we have 2 x 7 which 14. 140 + 14 is 154.
As an example: If we do 24 x 90, we essentially have 20 x 90 which is 1800 and 4 x 90 which is 360. Therefore we have 2160.
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What is -7 x -11 plus 22?
Well, a negative times a negative is the same thing as a positive times a positive, so you can basically turn the equation into: 7 x 11 + 22 7 x 11 = 77 77 +22 = 99 So, -7 x -11 + 22 = 99 Hope this helped. :]
What is X - Y equals 6 and -3y equals X plus 22?
x-y = 6 -x-3y = 22 -4y = 28 y = -7 So by substituting: x = -1 and y = -7
What is the answer in 4 raise to power 3 x 2 raise to power 4 x 7 by 4 x 2 raise to power 2 x 7 raise to power 2?
43 * 24 * 7 * 4 * 22 * 72 . 64 * 16 * 7 * 4 * 4 * 49 = 5619712
How do you solve 3x-7 equals 14x-29?
3x-7 = 14x-29 29-7 = 14x-3x 22 = 11x x = 2 Hope that helps!!;)
How do you solve x plus7 squared equals 5?
(x + 7)2 = 5 x + 7 = ±√5 x + 7 - 7 = -7 ± √5 x = -7 ± √5
