First of all, let's derive all the quantities. We know that Jermaine has
tokes. So, if you have 4 more tokens, it means that you can start from this quantity, and add 4. In formula Karen has
![K = t+4](https://tex.z-dn.net/?f=%20K%20%3D%20t%2B4%20)
tokens.
By the same logic, 5 fewer than a certain quantity means to subtract 5 from that quantity, so Raul has
![R = t-5](https://tex.z-dn.net/?f=%20R%20%3D%20t-5%20)
tokens.
Now we're ready to write the ratio between the two numbers: simply put Karen's tokens
at the numerator and Raul's tokens
at the denominator and substitute
and
with the expressions we just found:
![\frac{K}{R} = \frac{t+4}{t-5}](https://tex.z-dn.net/?f=%20%5Cfrac%7BK%7D%7BR%7D%20%3D%20%5Cfrac%7Bt%2B4%7D%7Bt-5%7D%20%20)
Obviously, since we don't know the value of
, we can't say exactly how many tokens anyone has, or computing the ratio numerically, but only express it in terms of
.
Hi,
The square root of √ 7 is 2,645751.
I got -4.3, but i had to round a lot so that answer may not be exactly correct. :)
The correct answer is: x < 1.25
To solve this, we following the same steps as when solving inequalities. We just have to remember to reverse the sign if we multiply or divide by a negative number.
-1.2x - 8.2 > -9.7
-1.2x > -1.5
x < 1.25