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Ivahew [28]
3 years ago
9

Pls Help Will Mark Brainliest for quickest accurate answer and explanation!!

Mathematics
1 answer:
Furkat [3]3 years ago
8 0

Answer:

The number of chicken and cows should be 19 and 11.

Step-by-step explanation:

The number of chicken and cows should be 19 and 11.

Given that,

The farm has 30 chickens and cows, and there are 82 chicken and cow legs all together.

Let x represent the number of chickens in the farm.

Let y represent the number of cows in the farm.

Based on the above information, the calculation is as follows:

x + y = 30

Since a chicken has 2 legs and a cow has 4 legs.

So,  

2x + 4y = 82 - - - - - - - - - - - - 1

Now  

Substituting x = 30 - y into equation 1, it becomes

2(30 - y) + 4y = 82

60 - 2y + 4y = 82

- 2y + 4y = 82 - 60

2y = 22

y = 11

Now

x = 30 - 11

= 19

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Use the equation k = x÷ y to find the constant of proportionality for the set of values
Lubov Fominskaja [6]

The constant of proportionality is 1/3

and three more values are

x       1        2        3        4        5        

y       3       6        9        12       15

<h3>Variation</h3>

From the question, we are to determine the constant of proportionality

The given equation is

k = x ÷ y

From the given information,

When x = 1, y = 3

∴ k = 1 ÷ 3

k = 1/3

Thus, the constant of proportionality is 1/3

Now, we will determine the values of y for the values x = 3, x = 4, and x = 5

Since

k = x ÷ y

Then,

y = x ÷ k

When x = 3

y = 3 ÷ 1/3

y = 3 × 3

y = 9

When x = 4

y = 4 ÷ 1/3

y = 4 × 3

y = 12

When x = 5

y = 5 ÷ 1/3

y = 5 × 3

y = 15

Hence, the constant of proportionality is 1/3

and three more values are

x       1        2        3        4        5        

y       3       6        9        12        15

Learn more on Variation here: brainly.com/question/19641181

#SPJ1

3 0
3 years ago
Plz help I really need this and thx
PtichkaEL [24]
The answer is 1/4, there are 4 options and the baseball cards are one selection.
4 0
4 years ago
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10) Jane has 68 stickers. She sticks 3 stickers on each page of her
Dima020 [189]

Answer:

Step-by-step explanation:

a) She uses 23 pages (but the last page has 2)

b) 2

c)Jane needs 82 more stickers because

50pages-23=27

27x3(stickers, befcuaase 3 stickers per page)=81

81+1=82 because on 23 page theres only 2 sticker

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3 years ago
What is the total number of digits required in numbering the pages of a book, which has 1,724 pages?
Alex Ar [27]

Answer:

5789 digits

Step-by-step explanation:

Given that the number of pages ares: 1,724  

As we know that:

  • (from 1 - 9) there are 9 one-digit numbers
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So the total are:

= 9(1)+90(2)+900(3)+725(4)\\\\= 9+180+2,700+2,900\\\\= 5,789\ digits

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