I am thinking you mean 93 to represent William's scores of 91, 92, and "q3"on three quizzes in Queston 8a
Answer:Average (x)= 92
b.William needs 97 as his third score to get as average of 90
Step-by-step explanation:
a.
The Average ( x) of the scores can solved using the Formulae
Average ( x)= Sum of scores / Number of Scores
Average ( x) = (Score 1 + Score 2 + Score 3) /3
Average (x)= (91, 92, and 93 )/3=276/3 = 92
b) Average ( x) of the scores = Sum of scores/ Number of Scores
Now let Score be represented as S such that
Average (x) = (S 1 + S 2 + S3 )/ 3
90 = 85+ 88+ S/ 3
90 x 3= 85+ 88 + S
270=173+ S
S= 270- 173
S=97
William needs 97 as his third score to get as average of 90
Answer:
C.
1.8 hours
Step-by-step explanation:
total homework time = math homework time + non math homework time
math homework time = 5 problems * 2 minutes/problem
= 10 minutes
= 10 minutes * 1hr/60 minutes = .167 hrs
non math homework time = 1.6 hours
total homework time = math homework time + non math homework time
total homework time = .167 + 1.6
total homework time = 1.77 hrs
rounding
total homework time = 1.8 hrs
Answer:
Rearrange: Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation : (9*3)*6-(6*(9*3))=0 STEP 1 : Equations which are always true 1.1 Solve 0 = 0. This equation is a tautology (Something which is always true) Equation is alway true
Hoped I helped
Answer:
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Step-by-step explanation:
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Answer:
the third one
Step-by-step explanation: