75/(z + 2) = 25 z = 1
The algebraic expression "twice a number z" can be represented as 2z. In this expression, the variable z represents the unknown number, and multiplying it by 2 gives you twice that number. This expression can be used in algebraic equations and formulas to represent scenarios where a number needs to be doubled.
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.
Number one = x Number two = y Number three = z x + y + z = 26The second number is twice the first. y = 2x The third number is 6 more than the second. z = y + 6 z = 2x + 6 x + 2x + (2x + 6) = 26 5x = 20 x = 4 Number one = 4 Number two = 8 Number three = 14
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75/(z + 2) = 25 z = 1
2z
If the mixed number is xy/z then the corresponding quotient is (xz + y)/z. The denominator is the same. The new numerator is the denominator times the integer part PLUS the old numerator.
If the number is 'z', then five less than twice the number is ( 2z - 5 ).
The algebraic expression "twice a number z" can be represented as 2z. In this expression, the variable z represents the unknown number, and multiplying it by 2 gives you twice that number. This expression can be used in algebraic equations and formulas to represent scenarios where a number needs to be doubled.
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.
45
Number one = x Number two = y Number three = z x + y + z = 26The second number is twice the first. y = 2x The third number is 6 more than the second. z = y + 6 z = 2x + 6 x + 2x + (2x + 6) = 26 5x = 20 x = 4 Number one = 4 Number two = 8 Number three = 14
Let the required number be z, then 8% of z =24 i.e. 8z/100 = 24 On solving we get z = 300 300 is the answer to the question.
The number of protons. Carbon = a Z number of 6. Hydrogen = a Z number of 1 Oxygen = a Z number of 8. And so on. Just read it off the periodic table.
2z+9
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