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Elodia [21]
2 years ago
8

here are 5 cards: 2,5,7,8,9. one of the cards is removed and then mean average is 6. which card was removed

Mathematics
2 answers:
omeli [17]2 years ago
7 0

Answer:

9 would be removed i believe

Step-by-step explanation:

Volgvan2 years ago
6 0
The card 7 should be remove.

Explain:
Assuming X is the total of 4 cards
X/4=6 => X=24
2+5+8+9=24
=> (2+5+8+9)/4=6
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Michael breeds chickens and ducks.
hodyreva [135]
Let c=cost of chicken and d=cost of duck; 50c+30d=550 and 44c+36d=532.
So 5c+3d=55, 11c+9d=133.
Therefore 15c+9d=165, subtracting 11c+9d=133 we get: 4c=32 so c=8.
5c+3d=40+3d=55, so 3d=15 and d=5.
Cost of chicken is $8 and cost of duck is $5.
4 0
3 years ago
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a class has 14 students, 8 students are females, and 6 students are males. how many teams of 7 students contain at most 4 female
arlik [135]

Answer:

2416

Step-by-step explanation:

8 0
2 years ago
Which is the solution to the inequality?
I am Lyosha [343]

Answer: A

Step-by-step explanation:

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y + 15 - 15 < 3 - 15

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8 0
2 years ago
Parallel to y=−3/4x, through (4, -1)
kolbaska11 [484]

Answer:

y=-\frac{3}{4}x+2

Step-by-step explanation:

The slope-intercept form is given by y=mx+c, where m is the slope and c is the y-intercept.

Slope of given line= -\frac{3}{4}

Parallel lines have the same slope. Thus, the slope of the line would also be -\frac{3}{4}.

y=-\frac{3}{4}x +c

The value of c can be found by substituting a pair of coordinates.

When x= 4, y= -1,

-1=-\frac{3}{4} (4)+c

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<em>Add 3 to both sides:</em>

c= -1 +3

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Thus, the equation of the line is \bf{y=-\frac{3}{4}x+2.

Additional:

Do check out the following for a similar question on slope-intercept form!

  • brainly.com/question/25549430
7 0
1 year ago
This will be so helpful right now thank
RoseWind [281]

Answer:

55 ft.

Step-by-step explanation:

First find the area of Lot X

67 • 70 = 4,690

Subtract the are of Lot X from the total area

8,375 - 4,690 = 3,685

3,685 is the area of Lot Y

Now divide 3,685 by the length of Lot Y : 67

3,685 ÷ 67 = 55

The width of Lot Y is 55 ft.

Hope this helps!

5 0
2 years ago
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