<em>Answer: There are 5 trumpet players and 15 saxophone player</em>
<em>Step-by-step explanation: Let a be the number of trumpet players
</em>
<em>Let b be the number of saxophone players
</em>
<em>---------------------
</em>
<em>(1) a = b-10
</em>
<em>(2) b =3a
</em>
<em>----------------
</em>
<em>Substitute </em>
<em>(2) into (1)
</em>
<em>(1) a =3a-10
</em>
<em>(1) 2a =10 </em>
<em>
</em>
<em> (1) a = 5and
</em>
<em>(2) b = 3(5)(2) </em>
<em>b = 15
</em>
<em>------------------
</em>
<em>There are 5 trumpet players and 15 saxophone player</em>
Answer:
C) 12(8+3)
Step-by-step explanation:
Answer:
a) 0.5756
b) 2.3333
Step-by-step explanation:
A) for p ( 0 ≤ t ≤ 2)
= 1 - 
= 0.5756
B) for E(t)
= 7/3 = 2.3333
attached below is the remaining part of the solution
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