Answer: add 4.75 to both sides, 12.35+ 4.75 = 17.10
Step-by-step explanation:
For both of these, the total she had before the smoothie can be found by adding the cost of the smoothie back to the amount she has left.
5x + 14 = 28
5x + 14 - 14 = 28 -14
5x = 14
5x/5 = 14/5
x = 2.8
We first need to find the difference between $70 and $49.
$70 - $49 = 21
Now we find out what percent $21 is of $70.
21/70 × 100 = 30%.
That means the discount is 30%!
Now we must find 30% of $100, which is $30.
Then we subtract $30 from $100.
$100 - $30 = 70$
