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boyakko [2]
3 years ago
13

The pool at "Splash Around" is open for 14 weeks during the summer. You can swim for $6 a session, or you can buy a membership f

or $100 and pay only $4 a session. Which equation would you use to determine how many sessions you must use the pool to justify buying the membership?

Mathematics
2 answers:
marta [7]3 years ago
7 0

Let

x--------> the number of sessions

y-------> the total payment

we know that

<u>without membership:</u>

y=6x -------> equation A

<u>with membership:</u>

y=100+4x -------> equation B

using a graph tool------> resolve the system of equations

the solution is the intersection both graphs

see the attached figure

the solution is the point (50,300)

that means

For x=50\ sessions

the cost is \$300 in both forms

so

to justify buying the membership

x> 50\ sessions

therefore

<u>the answer is</u>

The equation to determine how many sessions you must use the pool to justify buying the membership is

x> 50\ sessions

iris [78.8K]3 years ago
4 0
Price before membership= price 1 = $6
price after membership = price 2 = $4
Membership price = $100
SO according to price 1 and price 2; price after membership saves up $2 for each session.
Hence to justify the price of membership number of sessions can be calculated as follows:-
$2 saved = 1 session
to make it $100 multiply both sides by 50
2×50 = 1×50
100$ saved = 50 sessions
so 50 sessions ate required to justify buying the membership.


Hope this helped :)
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