To obtain an overall average of 86%, a score of 96 is required on her 4th test.
Let the required score on her fourth test = t
The required average = 86%
Initial scores : 80% + 83.5% + 84.5%
Average = ΣX/ (fx)
fx = total score obtainable = 4 × 100 = 400
ΣX = sum of scores
Average = 86%
0.86 = ((80 + 83.5 + 84.5 + t) / 400)
86 = (248 + t) / 400
400 × 0.86 = 248 + t
344 = 248 + t
344 - 248 = t
96 = t
In other to obtain an overall average of 86%, she has to score 96 in her 4th test.
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Answer:
<h3>The answer after performing the indicated operation is in descending powers of x is
</h3>
Step-by-step explanation:
Given expression is 
<h3>To perform the operation indicated, then place the answer in the proper location on the grid and also Write answer in descending powers of x:</h3>
Now solve the given expression as below ( that is perform the operation indicated)
Adding the like terms we get
<h3>The answer after performing the indicated operation is in descending powers of x is
</h3>
(4 3/8) + (5 1/3)
(4+5)(3/8 + 1/3)
9 + (17/24)
she ran 9 17/24 miles total
Answer:
A: The triangle in question is not a right triangle.
Step-by-step explanation:
If the triangle is a right triangle, then the Pythagorean theorem would hold
a^2 + b^2 = c^2
3^2 + 4^2 = 6^2
9+16 = 36
25 = 36
This is not true so this is not a right triangle
Answer:
Step-by-step explanation:
so there are 13 multiples of three and there's 40 numbers in total. 40 times 2.5 is 100. you do 13 times 2.5 which equals 32.5 percent chance of getting a multiple of three. so you do 100 minus 32.5= 67.5 percent chance of not getting a multiple of three.
Hope this helps:)
