Answer:
x(0.75)
If you get a 25% discount then you can subtract 25% from 100%, leaving you with 75%. If you multiply the value of x by 0.75, it will give you the final cost.
A whole number is a number that has no fractional representation.
Let's test all the options for the value of x.
When dividing a fraction by another fraction, the divisor will be in its reciprocal form.
1. 3/4 × 2/3
= 6/12 = 1/2
1/2 isn't a whole number.
2. 3/4 × 2/1
= 6/4 = 3/2
3/2 isn't a whole number.
3. 3/4 × 6/1
= 18/4 = 9/2
9/2 isn't a whole number.
4. 3/4 × 8/1
= 24/4 = 6
6 is a whole number.
Hence the answer is 1/8.
Hope it helps. :)
Lets write the information as an equation, and name x the number unknown:
(x + 4)^2 = 36
that is:
the sum of a number and 4: (x + 4)
then, the square of <span>the sum of a number and 4: (x + 4)^2
so we have:
</span>(x + 4)^2<span> = 36
</span>to solve we calculate square root to both sides of the equation:
(x + 4)<span> = 6
</span>then we solve for x:
x = 6 - 4
x = 2
so the unknown number is 2
X = 180 - 108 = 72.......,
