Simply reverse the question and you find that 4 + 6, which is 10 equals half of the unknown number. 10 x 2 = 20, which must therefore be the unknown number.
1/3 does not equal a half! An infinite number. 1/5, 1/6, 27/44
Yes, expressed as a decimal number, two and a half is equal to 2.5.
3 and 1/2 is a mixed number. It is equal to 7/2 as an improper fraction.
The number .5 is five tenths. Note that this is equal to one half.
Expressed as an equation, this would be equal to 0.5x or 1/2x.
The specific number 2.5 is not equal to half an inch.
Any number divided by2=half
twice an unknown number less one and one-half times the same number equals two ---- Let the unknown number be "x":: Equation: 2x - (3/2)x = 2
If you mean... -7+x*2=23 then x = 15. Done without the aid of a calculator ! The value of 'x' (the unknown number) MUST equal 30, because 30-7=23 - SO, half the unknown number must be 15!
1/2y = y - 10y is the unknown variable, so you write it italicized, but it is still a number you plug it in like any number! Hope that helps!
48
64
0.5 = 1/2 (a half)
4
1/3 does not equal a half! An infinite number. 1/5, 1/6, 27/44
4.5 is the same number as "four and a half"
Yes, expressed as a decimal number, two and a half is equal to 2.5.