Question 1197000: 1.Each of the four children Dino, Sonny, Nikko, and Xian, holds a different object (fan, car, dart, and slime).
From the following clues, determine who owns which object.
a. Sonny is older than his friend who owns the car and younger than his friend who owns the dart.
b. Nikko and his friend who owns the slime both have the same age. They are the youngest members of
them.
c. Dino is older than his friend who owns the fan.
2.Nine teams register in a basketball league. Each team will compete with the other teams only once. How
many games will be played in the basketball league?
3.On three quizzes, Alan received scores 82, 91, and 77. What score does Alan need on the fourth quiz to
raise his average to 86?
Answer by ikleyn(52781)   (Show Source):
You can put this solution on YOUR website! .
In this post, I will solve #2 and #3.
#2.
Each of 9 teams plays with all 8 other teams.
It gives the product of 9*8 = 72, which we should divide by 2,
since taking the product we count each game twice.
Solved.
#3.
The governing equation is
 = 86 (average).
The solution is in one line
fourth quiz score x = 4*86 - (82 + 91 + 77) = 94. ANSWER
Solved.
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