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Ede4ka [16]
3 years ago
14

Please help!!! I will give you BRIANLEIST AND A HEARTED COMMENT AND 5 STARS if you can explain this:(

Mathematics
1 answer:
Agata [3.3K]3 years ago
4 0

Answer:

I can do this give me a min

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the mean of a group of students in 60 . if their marks 85 ,65,36 ,48 , X ,75 ,39,72 then find the value of x​
miss Akunina [59]

Answer: 60

Step-by-step explanation:

Find the total number of students.

In this case, there are 8 total students. Multiply 60 * 8 = 480

Add all the numbers up.

85 + 65 + 36 + 48 + 75 + 39 + 72 = 420

480 - 420 = 60

x = 60

4 0
3 years ago
The Winkler family saved $100 month from the time Sarah was born until she started college. Sarah started collage on her 18th bi
Vlada [557]
4 year college Tuition: $28,800.00
Money Saved since Sarah was born: $21,600.00

So, no, her family did not save enough for college.
5 0
3 years ago
Read 2 more answers
Solve 5(2^x+4)=15 round to the nearest thousandth
Novosadov [1.4K]

Answer:

Step-by-step explanation:

Begin by dividing by 5

2x + 4 = 3            

Is this written as 2^(x + 4) = 3? I think it is.

Take the log of both sides

log 2^(x + 4) = log(3)

(x + 4) * log(2) = log 3

log 2 = 0.30103

log 3 = 0.47712

(x + 4) = log2 / log3

x + 4 = 0.63093               Add 4 to both sides

x = -3.369                        Rounded to the nearest thousandth

====================

If you mean the question exactly as it is written (the 4 is not part of the power)

5(2^x + 4) = 15

2^x + 4 = 3

2^x = 3 - 4

2^x = - 1

This can't be done 2 to any power should be >0.

if x>0 then this will give an ever increasing number

if xK0 then this will give an ever decreasing answer but still greater than 0.

No value will make 2^x go to something minus.

If I have misread this in some way, leave a note and I will get back to you.

5 0
3 years ago
_Izzy wants to paint three walls in her family room. Two walls are 13
stiks02 [169]
The total area would be the combined area of all three

Let’s knock out the first 2

4.5 * 13 = 58.5 * 2 = 117

Now the last

4.5 * 9 = 40.5

117 + 40.5 = 157.5 ft^2
5 0
3 years ago
Read 2 more answers
What divided by 4 equals 9/4 <br> ( 9/4= Divided by 4 )
Ann [662]

Answer

16/9

Step-by-step explanation:

I don't know if this is right or not and I'm sry if its wrong

but 16/9 divided by 4 = 9/4 

5 0
2 years ago
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