To find the average add all the numbers together then divide by how many numbers there are.
75+80+97+92=344 divided by 4 = 86
So her average right now is 86.
She’d have to make 96 to get an average of 88.
75+80+97+92+96=440 divided by 5=88
The answer is 96
Can you take a pic of the problem?
From the picture we can see that angles Z and X are the same because they are oposite angles of parallelogram and rule for it is that oposite angles are the same.
so we can write that equations for determining their size are the same
7x + 61 = 9x + 47
Now we just solve for x.
2x = 14
x = 7
If we implement this in formula for Z we find:
Z = 7*7 + 61 = 110
we implement value of x in the lenght of WY as well
WY = 84 - x = 84 - 7 = 77
Answer is C
Answer:
SSS congruence of two triangle
Step-by-step explanation:
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