Answer:
.
Step-by-step explanation:
In this question, (sales price) and (discount rate) are both given. The unknown is the regular price, .
Rearrange the discount equation to solve for in terms of and .
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Divide both sides by :
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It is given that . A mark-down of is equivalent to a discount rate of . Substitute in and to find the value of :
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Thus, the regular price would be .
To Solve MAD or the mean absolute deviation what you need to do is get the Mean so lets say you have the numbers 20,35,18,34,60,82,10, and 29 add them up to get 228. next divide by the amount of numbers 228/8 = 36 now to get the mean absolute deviation get the difference of each number, but some will be negative so we will turn them to positive Like so.
20-36=-16 turn to positive 16
36-35=1
36-18=18
36-34=2
60-34=24
82-34=46
36-10=26
and 36-29=7
you add up these numbers to get 140 then divide them by the numbers 140/8=17.5
<span>so 17.5 is your mean absolute deviation.</span>
5a - (-2a) + 9
When you subtract a negative number, you can replace the 'double negative' with a positive, or addition. So, instead of subtracting -2a, you can add 2a.
5a + 2a + 9 Combine like-terms
7a + 9
<span>To begin, there are only two ways to find die values beginning with a 3 that will give a score of greater than 14: (5,6). Moving to a first roll of 4, there are 3 values that will do the same: (4,5,6). A first score of 5 gives four values (3,4,5,6), and a first roll of 6 will give four values, as well (3,4,5,6). This gives a total of 13 out of 36 possibilities that will have a product of greater than 14.</span>
Answer:
b
Step-by-step explanation: