math
1 - 3 / 4 = 4 / 4 - 3 / 4 = 1 / 4 2 / ( 1 / 4 ) = ( 2 / 1 ) / ( 1 / 4 = ( 2 * 4 ) / ( 1 * 1 ) = 8 / 1 = 8 $
Math-
When you multiply or divide left and right sides of inequality WITH NEGATIVE NUMBER , you MUST CHANGE the direction of the inequality
Math-
x / 2 - ( 3 x - 1 ) / 3 = [ 3 x - 2 ( 3 x - 1 ) ] / 6 = ( 3 x - 6 x + 2 ) / 6 = ( - 3 x + 2 ) / 6 x / 2 - ( 3 x - 1 ) / 3 < 1 / 4 ( - 3 x + 2 ) / 6 < 1 / 4 Multiply both sides by 6 - 3 x + 2 < 6 / 4 Multiply both sides by 4 - 12 x + 8 < 6 Subtract 8 to both sides -...
Algebra
P = Perimeter L = Legth W = Width P = 2 L + 2 W = 2 ( L + W ) 38 = 2 ( L + 4 ) Divide both sides by 2 19 = L + 4 Subtract 4 to both sides 19 - 4 = L + 4 - 4 15 = L L = 15 in
Pre-Calculus
3 ^ ( - 3 ) = 1 / 27 OR 1 / 3 ^ 3 = 1 / 27
fractions
13 1 / 4 = 13 5 / 20
fractions
13 1 / 4 = 13 4 / 20 12 9 / 10 = 12 18 / 20 13 4 / 20 + 12 18 / 20 = 25 22 / 20 = 25 11 / 10 = 25 +10 / 10 + 1 / 10 = 25 + 1 + 1 / 10 = 26 1 / 10
Algebra
A is correct answer
Math question
If 1-(3x/2) <. 4 mean : 1 - ( 3 x / 2 ) < 0.4 then Subtract 1 to both sides 1 - ( 3 x / 2 ) - 1 < 0.4 - 1 - 3 x / 2 < - 0.6 Multiply both sides by 2 - 3 x < - 1.2 Divide both sides by - 3 ________________________________________ Remark: When you multiply or divi...
algebra
2 x + ( 1 / 2 ) y = 24 Multiply both sides by 10 20 x + ( 1 / 2 ) y * 10 = 24 * 10 20 x + 5 y = 240 ________________________________________ 3 x + 5 y = 10 - 20 x + 5 y = 240 ________________________________________ 3 x - 20 x + 5 y - 5 y = 10 - 240 - 17 x = - 230 Divide both ...
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