3z-5
z is the number. I think the question might be ".. 7 times the number...? So 63+7z =11z-6 or 4z=57 or z=57/4 . If not, please be more specific.
There are all sorts of relations possible. equality, inequality, less than, greater than, x times (where x is some number), y more (where y is some other number), z to the power (where z is yet another number), and so on.
Twenty three fewer than a variable represented by z.
x = 4z/5 y = .72z 5x/4 = z By subsitution, we have: .9x = y Thus, x is 10% more than y, and Without Loss of Generality, y is 10% less than x.
If the number is 'z', then five less than twice the number is ( 2z - 5 ).
z = 0.84 approx.
x − y > x − z
z - 7
It is: z-8
3z-5
If ' z ' is greater than ' 1 ', then ' z ' is. If ' z ' is less than ' 1 ', then ' 1 ' is.
If you think about it, it makes sense. when you divide a whole number (call that number X) by any number less than it(call that Z), the quotient (answer) is smaller than the first number. For example, 10/2=5, 12/4=3. Also, the lower the Z number is (ignoring if it were 1), the higher the quotient is. Therefore, since fractions are lower than 0, the quotient will be higher than the X number.
z is the number. I think the question might be ".. 7 times the number...? So 63+7z =11z-6 or 4z=57 or z=57/4 . If not, please be more specific.
You will need to use tables of z-score or a z-score calculator. You cannot derive the value analytically.The required z-score is 0.524401
z - 7
(z = 35 or z = 37) is one way.