What should I do ? Where it’s say ‘ start here ‘?
2 answers:
Yes, you are going to start the maze in the box that says "Start Here". For the first box we are trying to find the length of AB. Notice that AB + BC = AC. If we substitute our known values for AB and BC, we find that we obtain the equation:
By simplifying our equation and isolating , we can find our answer:
The length of AB is 4.
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Attached a solution and showed work.
Answer:
15
Step-by-step explanation:
The mean is basically the average. To find it, we add up all the numbers and then divide that sum by the number of numbers.
Here, we need to find the sum: 7 + 8 + 9 + ... + 22 + 23. To do so, we can use the formula: , where a_1 is the first number (7 in this case), a_n is the last number (23 in this case), and n is the number of numbers (23 - 7 + 1 = 17 numbers in this case). So:
is the sum.
Now, we need to divide 255 by the number of numbers, which is 17: 255/17 = 15.
Thus, the mean is 15.
Hope this helps!