A ticket for an adult visiting an exhibition costs x cents. A ticket for a child costs 30 cents less than an adult's ticket.

a) write down, in terms of x, the cost of a child's ticket.
b) Mr smith takes his 3 children to the exhibition. Find, as simplyas possible, in terms of x, the total cost in cents of the for tickets.

Question

A ticket for an adult visiting an exhibition costs x cents. A ticket for a child costs 30 cents less than an adult's ticket.

a) write down, in terms of x, the cost of a child's ticket.
b) Mr smith takes his 3 children to the exhibition. Find, as simplyas possible, in terms of x, the total cost in cents of the for tickets.

anonymous · Answer

a--x-30
b-- 3(x-30) assuming that we are not including the cost of Mr. Smith's ticket.if we include his ticket the it is 4x-90

parthkohli · Answer

$\Large \color{purple}{\rightarrow x - 30 }$

^^ Child's ticket if adult's ticket is x:

$\Large \color{purple}{\rightarrow x  + 3(x - 30) }$
$\Large \color{purple}{\rightarrow x + 3x - 90 }$

$\Large \color{purple}{\rightarrow 4x - 90 }$

This is the price he needs to pay. Get it?

anonymous · Answer

yeah. thanks.