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marishachu [46]
3 years ago
11

At six am the temperature was -8°c at noon the temperature was 3°c what was the change in temperature between 6 am and noon

Mathematics
1 answer:
Roman55 [17]3 years ago
4 0
The temperature change from 6am to noon is 11°c
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Farmer frank owns a piece of grassland. The grass grows at a constant rate and each cow eats at a constant rate. 12 cows can eat
MrRa [10]

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

x=\dfrac{126}{5},\ y=\dfrac{3}{10}

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

126c=72\times \dfrac{126}{5}+72\times 126\times \dfrac{3}{10}\\\\126x=4536\\\\x=\dfrac{4536}{126}\\\\x=36

Hence, there are 36 cows that can eaten 72 acres of grass in 126 days.

3 0
3 years ago
0<br>Domain:<br>Range:<br>Function? what is the domain​
Anna35 [415]

Answer:

Domain are any value of x that's make y to be defined

7 0
3 years ago
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How many solutions does this equation have?
maxonik [38]

Answer:

No solutions

Step-by-step explanation:

The lines are parallel.

5 0
3 years ago
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Suzanne will use orange and blue beads to make bracelets. She will use the same number of orange beads on each bracelet and the
77julia77 [94]

Answer:

She can make 6 bracelets using 12 orange beads and 13 blue beads.

3 0
2 years ago
What is the average rate of change of the function from x = 0 to x = 2?.
irina1246 [14]

The average rate of change of the function from x = 0 to x = 2 is -2

From the complete question (see attachment), we have the following ordered pair when x = 0 and x = 2

(x,y) = \{(0,10)\ (2,6)\}

The average rate of change is calculated using:

\Delta x = \frac{y_2 -y_1}{x_2 -x_1}

So, we have:

\Delta x = \frac{6-10}{2-0}

Evaluate common terms

\Delta x = \frac{-4}{2}

Divide -4 by 2

\Delta x = -2

Hence, the average rate of change of the function from x = 0 to x = 2 is -2

Read more about rate of change at:

brainly.com/question/8728504

5 0
2 years ago
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