Answer:
d=0.031746
Step-by-step explanation:
1. Add 4d to both sides: 3.2=2.3d+3+4d
2. Simplify 2.3d +3+ 4d to 6.3d+3: 3.2=6.3d+3
3. Subtract 3 from both sides: 3.2-3=6.3d
4. Simplify 3.2-3 to 0.2: 0.2-6.3d
5. Divide both sides by 6.3: 0.2/6.3=d
6. Simplify 0.2/6.3 to 0.031746: 0.031746=d
7. Switch sides: d=0.031746
Hope this helped!
Answer:
24 ways
Step-by-step explanation:
1) In Combinatorics when we arrange a number and the order matter, we call it arrange the possibilities. For this exercise let's not use formulas but reasoning.
2) For this case we need a two figure number. Since we have seven numbers.
Since there is no repetition, all the possibilities are:
![7*6=42](https://tex.z-dn.net/?f=7%2A6%3D42)
3) But there is a restriction it's forbidden adjacent even and odd numbers: These numbers we don't want them:
13 15 17
24 26
31 35 37
42 46
51 53 57
62 66
71 73 75
<u>18 non desirable results</u>
The total arrangements minus the not possible combinations, will match the possible results:
![42-18=24](https://tex.z-dn.net/?f=42-18%3D24)
3) Just for checking, we have here the allowed combinations:
12 14 16
21 23 25 27
32 34 36
41 43 45 47
52 54 56
61 63 65 67
72 74 76
A total of 24 possible ways.
Answer: B
You use pemdas to solve and also the GCF in this case is 7
Let the number of large frames sold be X.
Therefore the number of small frames sold is 3X.
So X large frames + 3X small frames = total sales last week.
Now substitute the prices for each item and the total into above equation:
8.99X (large frames) + 3 x 2.99X (small frames) = 233.48 (total sales)
Therefore 8.99X + 8.97X = 233.48
Therefore 17.96X = 233.48
So X = 233.48 / 17.96
Therefore X = 13
So 13 large frames were sold
So if there were 3X small frames sold, there were 3 x 13 sold, which is 39
Therefore 13 large frames and 39 small frames were sold.
(I'm not sure if this is the right method for working out this problem or not, but even if it isn't, hopefully if gives you the idea ;) )
Answer:
START with tusks : 97.6% without tusks : 2.4 percent
END with tusks 87.2% without tusks 12.8%