Marked(10)/total = 3/20 (from sample)
total/10 = 20/3 (inverting the above proportion)
total = 10•20/3 = 200/3 ≈ 67
        
             
        
        
        
Answer:
https://scuolaelettrica.it/correttore/spagnolo/manutenzione/risolutore/risolti/risoltirettangolo.php
Step-by-step explanation:
here use this
 
        
             
        
        
        
we are going to create a table in excel and
we will assign different values of topping to know when the price is equal in
both pizzerias
 
see the attached figure
 
the answer is
5 toppings from palanzio’s pizzeria
6 toppings from guido’s
pizza
cost palanzio’s pizzeria----> 6.80+0.90*5-----> $11.30
cost <span>guido’s pizza------> 7.40+0.65*6----------> $11.30</span>
 
 
        
             
        
        
        
Answer=18 
First step combine the positive like terms
16+8+6
 |
 |
 \/
30
Second step is to combine negative like terms with 30
30-3-9
When you do this you add 9 and 3 together since they are similar to each other so it equals 12 there for the equation becomes.....
30-12
Final answer 18