The following measurements were taken of a tree. Do the age and height show direct variation? If so, write the equation of varia
tion.
direct variation y = 0.28x
direct variation y = 0.28x + 3.6
direct variation x = 3.6y
no direct variation
direct variation y = 0.28x
direct variation y = 0.28x + 3.6
direct variation x = 3.6y
no direct variation
2 answers:
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Amount paid for the first book is $17.
Amount paid for the second book is 0.75 x 8 = $6
Total amount paid = $17 + $6 = $23
Total full cost of the two books = $17 + $8 = $25
Amount of discount = $25 - $23 = $2
% reduction =
Therefore, the <span>percent of the total cost of the two books reduced during the sale</span> is 8%
Amount paid for the second book is 0.75 x 8 = $6
Total amount paid = $17 + $6 = $23
Total full cost of the two books = $17 + $8 = $25
Amount of discount = $25 - $23 = $2
% reduction =
Therefore, the <span>percent of the total cost of the two books reduced during the sale</span> is 8%
we can see that
the given curve is parabola
so, firstly we will find vertex
vertex is (4,0)
we can write equation of parabola
now, we can plug values
and we get
we can also write it as
.............Answer
Answer:
x = and y =
Step-by-step explanation:
Known that he sum of angles on a straight line is . From the diagram;
2y + x + y =
x + 3y = ................ 1
Also,
2x + x + 2y =
3x + 2y = .............. 2
Using the elimination method, multiply equation 1 by 3 and equation 2 by 1
3x + 9y = 540 ............ 3
3x + 2y = ............. 4
7y = 360
y =
y =
substitute the value of y in equation 1,
x + 3y =
x + 3(51.4) =
x + 154.2 =
x = - 154.2
x =
Thus, x = and y =