Answer: There are 36 cows that can eaten 72 acres of grass in 126 days.
Step-by-step explanation:
Let x be the amount of grass in an acre initially.
Let y be the amount of grass grown in an acre per day.
Since we have given that
12 cows can eat 10 acres of grass in 28 days
12×28 = 10x + 10×28 y
336 = 10x + 280 y----------------------------(1)
Similarly,
21 cows can eat 30 acres of grass in 63 days.
21×63 = 30x + 30×63 y
1323 = 30x +1890 y ---------------------------(2)
So, by graphing method, we get the value of x and y
So, we have, 72 acres of grass in 126 days, we need to find the number of cows.
So, it becomes,
c×126 = 72x + 72×126 y
Hence, there are 36 cows that can eaten 72 acres of grass in 126 days.
Answer:
meter
Step-by-step explanation:
N(2x+y) = x +1
Differentiate both sides, using the Chain Rule on the left side.
(1 / (2x + y)) * d(2x + y)/dx = 1
(1 / (2x + y)) * (2 + dy/dx) = 1
<span>Rearrange to isolate dy/dx.
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The statement "The whole number has one digit if and only if the whole number is less than 10" is true for converse statement. Then the correct option is C.
<h3>What are converse statements?</h3>
A inverse statement is one that is derived by opposing the supposition and result of a relative clause.
Let p: The whole number has one digit.
Let q: The whole number is less than 10.
The statement "The whole number has one digit if and only if the whole number is less than 10" is true for converse statement.
If p → q, then, q → p
Then the correct option is C.
More about the converse statements link is given below.
brainly.com/question/18152035
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