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WARRIOR [948]
2 years ago
11

there are five number cards. 1 4 6 8 9 One of the cards is removed and the mean average of the remaining four number cards is 6

Which card was removed? You must show your working.
Mathematics
1 answer:
djyliett [7]2 years ago
6 0

Answer:

The card removed was number '4'.

Step-by-step explanation:

9+8= 17

17+6= 23

23+1=24

You then must divide 24 by 4:

24/4 = 6

Therefore the card removed must have been 4.

I hope that helped and I hope it is correct lol.

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Please help on question 17 with step by step instructions <br> Thanks in advance xx
shutvik [7]
Let x = Initial Price

If we increase x by 5%, we are adding 0.05x

Therefore, the new price = x + 0.05x = 1.05x

If the ticket has increased by £2.30, £2.30 is 5% of the initial price, or 0.05x

0.05x = 2.30

x = 2.30/0.05

x = 46

Therefore, the price of the ticket before the increase was £46

You can also check this backwards by doing 46*0.05 = 2.30
6 0
3 years ago
ASAP WILL MARK BRAINLYEST TO FIRST PERSON WHO ANSWERS!!!
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15x + 7y + 45x + 22y
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6 0
3 years ago
The area of a square bedroom is 144 square feet. what is the length of one wall?
Rufina [12.5K]
The answer is:  "12 feet" .
________________________________
Note:  In a square, the length of EACH of the four sides of the square is the same.

Area = Length * width. 

For a square, length = width.

So for a square, Area = length * width = (length of a side)² = s² ,

Given:  A = s² = 144 ft² ;

Solve for the positive value of "s" .
________________________________
  →  s² = 144 ft² ;  Take the "square root" of each side ;

  → √(s²) = √(144 ft²) ;

  →   s = 12 ft.
_______________________________
The answer is:  12 ft.
_______________________________
6 0
3 years ago
What is the Y-Intercept?
antoniya [11.8K]

Answer: The y-intercept is 1

Step-by-step explanation:

On a graph, the y-intercept is the point where the line intersects the y-axis. The corresponding x-coordinate is always 0. ... When a linear equation is written in slope-intercept form (y=mx+b), the slope is represented by the variable m. It is the coefficient to x in the equation.

7 0
2 years ago
the beer at the electronic store was $81 before taxes the taxes is 7% what is the total of the price with tax
irga5000 [103]
Beer? at an electronic store? but srsly, 81*.07 is 5.67, total is 86.67
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4 years ago
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