Answer:
975
Step-by-step explanation:
39 ÷ 4% = 975
Answer:
Below in bold.
Step-by-step explanation:
x can have any real value - the domain is (-∞, ∞).
f(x) cannot be 0 or negative, no matter how negative x is, - the range is (0, ∞)
Answer:a
Step-by-step explanation:
Solution for given equation -(5-(a+1)) = 9-(5-(2-3)) is a = 7
<u>Solution:
</u>
Need to determine solution of following equation’
-(5-(a+1)) = 9-(5-(2-3))
Means need to solve the above equation for "a"
On solving operation in most internal bracket we get
-(5-(a+1)) = 9- ( 5 – ( -1))
On opening inside brackets we get,
-(5 – a – 1 ) = 9 – ( 5 +1 )
On solving remaining brackets we get
-5 + a + 1 = 9 – 6
=> a – 4 = 3
=> a = 4 + 3 = 7
=> a = 7
Hence solution for given equation -(5-(a+1)) = 9-(5-(2-3)) is a = 7
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