If 4y is 9 greater than the sum of y and 3x, by how much ...
If 4y is 9 greater than the sum of y and 3x, by how much is y greater than x?
3
6
9
12
Correct answer is A
4y - 9 > y + 3x; 4y - y > 3x + 9
3y > 3(x + 3); y = > 3(x+3)3
y > x + 3; y - 3 > x
y is greater than x by 3
From the Venn Diagram below, find Q' ∩ R....
Calculate, correct to three significant figures, the length AB in the diagram above. ...
W is directly proportional to U. If W = 5 when U = 3, find U when W = 2/7 ...
If m : n = 2 : 1, evaluate 3m2−2n2m2+mn...
If the variance of 3+x, 6, 4, x and 7-x is 4 and the mean is 5, find the standard deviation...