Answer:
Computed mean = 51.6
Actual mean > computed mean
Step-by-step explanation:
Low temp. - - Freq(f) - - midpoint(x) - - fx
40−44 - - - - - 2 - - - - - - - 42 - - - - - - 84
45−49 - - - - - 7 - - - - - - - 47 - - - - - - 329
50−54 - - - - - 9 - - - - - - - 52 - - - - - - 468
55−59 - - - - - 5 - - - - - - - 57 - - - - - - 285
60−64 - - - - - 2 - - - - - - - 62 - - - - - - 124
Mean (m) = Σ(fx) / Σ(f)
Σ(fx) = 84 + 329 + 468 + 285 + 124 = 1290
Σ(f) = 2 + 7 + 9 + 5 + 2 = 25
Mean (m) = 1290 / 25
Computed mean (m) = 51.6
Actual mean = 56.6
Actual mean > computed mean
56.6 > 51.6
<em>Answer and the Step-by-step explanation : -</em>
<em />
<em><u>1) x(y - 5) = 2</u></em>
<em />
<em>First you gotta open the brackets so then you'll get : -</em>
<em>xy - 5x = 2</em>
<em><u>Answer</u></em><em> : - " since xy is remaining the equation will not linear "</em>
<em />
<em><u>2) y - 2(x + 9) = 0</u></em>
<em><u></u></em>
<em> "y - 2x - 18 = 0 "</em>
<em> "Y = 2x + 18 "</em>
<em />
<em><u>Answer</u></em><em> : - "This is linear"</em>
<em />
<em><u>3) 3y + 6(2 - x) = 5</u></em>
<em />
<em>3y + 12 - 6x = 5</em>
<em />
<em>3y = 5 - 12 + 6x</em>
<em />
<em>3y = 6x - 7</em>
<em />
<em>Y = 2x - 7/3</em>
<em />
<em><u>Answer</u></em><em> : -This is linear </em>
<em />
<u><em>4) 2(y + x) = 0</em></u>
<em />
<em>2y + 2x = 0</em>
<em />
<em>2y = - 2x</em>
<em />
<em>y = - x</em>
<em />
<em><u>Answer</u></em><em> : - " This is linear "</em>
<em />
<em />
Answer:
14 hrs of babysitting and 6 hrs of tutoring
No, they aren't. 3/3+ 1 whole
S=Selling price 135
V=Variable cost 75
F=Fixed cost 3300
Let quantity be Q
The formula to break even is
135Q-75Q-3300=0
Solve for Q
60Q-3300=0
60Q=3300
Q=3300/60
Q=50
So the store must sell 50 bicycles to break even
Hope it helps!
