Four students working in a group are trying to find a rational number between
1 answer:
You might be interested in
Answer:
Step-by-step explanation:
Let
x = cost for one adult
y = cost for one child
z = cost for one senior.
<u>The Reid family:</u>
take 2 adults and 2 children and paid that is
, so
<u>The Mghee family:</u>
take 1 senior, 2 adults and 1 child and paid that is
, so
<u>The Griffiths family:</u>
take 1 senior and 3 adults and paid that is
, so
You get the system of three equations:
From the first equation:
From the third equation:
Substitute them into the second equation:
Then
Hence,
the cost for one adult is
the cost for one child is
the cost for one senior is
<u>The Linton family</u> takes 1 senior, 2 adults and 3 children and paid
Answer:
0.2
Step-by-step explanation:
6+4+3+2=total no of marble
=15
no of blue marble 3