Let D represent the cost of the desk and T represent the tax paid.
Given,the cost of the desk plus the tax equals $131.44, so equation becomes
D + T = 131.44 ...(1)
As given, tax T equals 1/16 times the cost of the desk less 0.31 dollars, so equation becomes T = (1/16)D - 0.31
Now substituting the right side of this equation for T into equation (1 )for the total price
, so the first equation becomes:
D + (1/16)D - 0.31 = 131.44
Now adding 0.31 to both sides we get:
D + (1/16)D = 131.75
Since D is equivalent to (16/16)D we can substitute that for D and we get:
(16/16)D + (1/16)D = 131.75
= (17/16)D = 131.75
= 17D = 131.75*16
17D = 2108
D = 124
Hence, the cost of the desk is $124
So, Option D = $124.00 is correct
In 12 days she will have them on the same day.
The inequality is -12x + 3y > 9.
PART A:
The sytem has no solution if inequality does not share a common area. The inequality -12x + 3y > 9 consist the region to left of line -12x + 3y = 9. So for no solution the region to left of equation -12x + 3y = 9 is suitable.
Thus inequality for no solution is, -12x + 3y < 9.
PART B:
For infinite solution the region of both inequality must overlap each other, or the inequality is same with some multiplication of divison factor. So inequality for infinite many solutions is,
Thus inequality for infinite many solution is 12x - 3y < -9.
Answer:
16.8
Step-by-step explanation:
84/5 = 16.8
In order to study geometry logically, it will be important to understand key mathematical properties and to know how to apply useful postulates and theorems. a postulate is a proposition that has not been proven true but is considered to be true on the basis for mathematical reasoning.