Answer:
The absolute error is <u>4 ft</u> and percent error of Tony's estimate is <u>9.8%</u>.
Step-by-step explanation:
Given:
Tony estimated the height of his office building to be 45ft. The actual height of his office building is 41ft.
Now, to find the absolute error and the percent error of Tony's estimate.
The height of his office building = 45ft.
The actual height of his office building = 41 ft.
So, to get the absolute error:
<em>The height of his office building - the actual height of his office building</em>
The absolute error = 4 ft.
Now, to get the percent error of Tony's estimate:
<em>Percent error of Tony's estimate rounding to nearest tenth = 9.8%.</em>
Therefore, the absolute error is 4 ft and percent error of Tony's estimate is 9.8%.
Y=-13+3
y=-10
That is a horizontal line, it has a slope of zero.
Given:
Total amount spent = $14.85
Total number of flowers = 13
The cost of a lily = $1.25
The cost of a tulip = $0.90
Let x = the number of lilies bought
Let y = the number of tulips bought
Therefore
x + y = 13 (1)
1.25x + 0.9y = 14.85 (2)
From (1),
y = 13 - x (3)
Substitute (3) into (2).
1.25x + 0.9(13 - x) = 14.85
0.35x + 11.7 = 14.85
0.35x = 3.15
x = 9
y = 13 -x = 4
Answer:
9 lilies
4 tulips
Answer:
-43 necklaces.
-total expenses=Sales=$473
Step-by-step explanation:
The breakeven point is the point where the sales revenue equals the expenditure.
-The fixed expenses is $172
-Let x be the number of necklaces sold, the breakeven point is expressed as:
Hence, Shelby has to sell 43 necklaces to breakeven.
#The expenses at the breakeven point is:
Hence, expenses at breakevent point is $473
#Sales is equal to expenses at this point, hence, sales of $473
