10000 multiplied by 7/100(7%) multiplied by 1 (amount of years) =$700 interest
since we do not know how many adults are, set up the equation like this:
4/5=20/<em>x</em>
then, you would cross multiply and get
4<em>x</em>=100
Divide four on both sides, and you have
<em>x</em>=25
The original price of concert tickets before the addition of service fee is 42.93
<h3>Percentage</h3>
- Amount spent on tickets including service fee = 45.50
- Percentage if service fee = 6%
- Original cost before service fee = x
45.50 = x + (6% of x)
45.50 = x + (0.06 × x)
45.50 = x + 0.06x
45.50 = 1.06x
x = 45.50/1.06
x = 42.9245283018867
Approximately,
x = 42.93
Learn more about percentage:
brainly.com/question/843074
#SPJ1