The 114 represents 80% of the total price before the sale. You would set up your equation as
Cost Price * 80% = Sale Price.
Sale Price = 114
80% = 80/100 = 0.8
Cost Price = 114/0.8
Cost Price = 142.50 which is the price before the deduction. You can confirm this by taking 20% of 142.50 and subtracting it form 142.50
20% * 142.50
20/100 * 142.50
2850/100
28.50
Now subtract 28.50 from 142.50
142.50 - 28.50 = 114 which is just what you might expect.
Answer:
C-0.13C=0.87C
Step-by-step explanation:
the whole - 13%=87%
Answer:This is a function who's value is cost (C) and which has two (instead of the more common one) independent variable. The cost depends on diameter (d) and number of toppings (t). The nomenclature for a function C that depends on variables d & t is C(d,t). The terms of the function include a constant (cost of a 10 inch cheese pizza) and two rates. The rates includes $0.75/topping and $1.50/inch over 10. C(d,t) = 8 + 0.75 t + 1.50 (d-10)
Explanation: there you go Yeon! hopes it the correct for you and have a great day *^-^*
The equation of the tangent to the curve at the point corresponding to the given value of the parameter will be x + y = c.
<h3>How to calculate the tangent of the parameter curves at a point?</h3>
The curves are given below.
x = t⁵ + 1 and y = t⁶ + t
Then differentiate the functions with respect to t, then we have
...1
and
...2
Divide equation 2 by equation 1, then we have
Then the slope of the equation at t = −1, then we have
dy/dx = [6(-1)⁵ + 1]/[5(-1)⁴]
dy/dx = (-6+1)/5
dy/dx = -5/5
dy/dx = -1
Then the equation of the tangent line will be
y = -x + c
x + y = c
Where c is a constant.
More about the tangent of the parameter curves at a point link is given below.
brainly.com/question/12648555
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