You start with 75 houses
2/5 were sold, which mean 3/5 remain
3/5 of 75 is 45
Then, 1/3 of the REMAINING (45) houses were sold. Since 1/3 were sold, 2/3 remain of 45.
2/3 of 45 is 30
30 houses are left to be sold
Answer:

Step-by-step explanation:
Given that:
Number of seats sold is 180 with ticket price $200.
Number of seats decreases by one when the ticket price is increased by $3.
To find:
The formula for the number of seats sold (S) when the ticket price is P dollars.
Solution:
It is linear dependency of number of seats sold, S on ticket price, P.

It can be written as:

Where
is the constant of proportionality and
is a constant.
Now, putting the given values:

...... (2)
Subtracting (1) from (2):

Putting the value in (1):

Therefore the equation becomes:

Divide both sides by 2<span>πh:-
r = S / 2</span><span>πh Answer</span>
Answer:
8/12
Step-by-step explanation:
find common denominator then add
5/12 + 3/12 = 8/12 or 2/3 as simplify