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.
Learn more : brainly.com/question/15528814
We have:
- 5 : 1 = 5/1 = 5
- 6 : 2 = 6/2 = 3
- 5 > 3
So: 5:1 > 6:2
Answer: 5:1 greater than 6:2
Ok done. Thank to me :>
Answer:
7
Step-by-step explanation:
I assume that 3,14 is 3.14
=3.14 x (200-175)2 - 150
=3.14 x (25)2 - 150
=3.14 x 50 - 150
=157-150
=7
Answer:
Irrational
Step-by-step explanation:
The square root of 28, which is 5.291502622129181, is not a rational number. It cannot be written as a simple fraction, so it is called irrational.
Answer:
the value of f(7) is -2
Step-by-step explanation:
7 is being substituted for x. you look at where the x = 7 and see the respected y coordinate.
when x = 7, y = -2.
the coordinate is (7,-2)
the value of f(7) is -2
