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Alika [10]
3 years ago
11

Tell whether the two quantities vary directly. Explain your reasoning. The cafeteria provides three meals per day.

Mathematics
1 answer:
Dafna11 [192]3 years ago
3 0

Answer:

The cafeteria provides three meals per day.

<u>Reason 1</u>

Yes, they vary directly  

As number of days increases ,Total number of meals i.e

1st day ⇒ 3

2nd day⇒6

3 rd day⇒9

4th day⇒12

......................

.........................

increases.

Total number of Meals = k×Number of days

But there is another possibility also

<u>Reason 2</u>

1 st day ⇒ 3

2nd day ⇒3

3rd day⇒ 3

.....................

.....................

As you can see from the above expression On each day number of meals is  

constant.

So we can say that ,

On each Day=Constant amount of meal=3

So, there is no Proportionality between Days and Meal.




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Problem
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Answer:

45/126 or 5/14

Step-by-step explanation:

a / b = 5/8

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a = 5

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If b was = 8 and now = 72, multiply a by 9.

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If b was 9 and now is 72, multiply c by 9.

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Answer:   5  1/2

Step-by-step explanation:

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1 year ago
Read 2 more answers
Whats its the result Of 25099.506/4.45?
777dan777 [17]
\dfrac{25099.506}{4.45} \ \text{Divide} 

<span>Shift the decimal points of both 25099.506 and 4.45 to the right by 2 decimal places. 
</span>
<span>(This is needed to convert 4.45 to 445, since long division must divide by a whole number.) 
</span>
\text{Set up the long division.}&#10;

\text{Calculate 2509 divided by 445, which is 5 with a remainder of 284.}
<span>
</span>\text{ Bring down 9, so that 2849 is large enough to be divided by 445.}

\text{Calculate 2849 divided by 445, which is 6 with a remainder of 179.} &#10;

\text{Bring down 5, so that 1795 is large enough to be divided by 445.}

\text{Calculate 1795 divided by 445, which is 4 with a remainder of 15.}

\text{Bring down 06, so that 1506 is large enough to be divided by 445.&#10;}

\text{Calculate 1506 divided by 445, which is 3 with a remainder of 171.}

\text{Bring down 0, so that 1710 is large enough to be divided by 445.}

\text{Calculate 1710 divided by 445, which is 3 with a remainder of 375.}

\text{Bring down 0, so that 3750 is large enough to be divided by 445.}

\text{Calculate 3750 divided by 445, which is 8 with a remainder of 190.}

\text{Bring down 0, so that 1900 is large enough to be divided by 445.}

\text{Calculate 1900 divided by 445, which is 4 with a remainder of 120.}

\text{Bring down 0, so that 1200 is large enough to be divided by 445.}

\text{Calculate 1200 divided by 445, which is 2 with a remainder of 310.}

<span>Therefore, 25099.506 ÷ 4.45 ≈ 5640.33842</span>

8 0
3 years ago
Can anyone pls help me to solve question 2 f and g and pls provide me a explanation I’m with that questions for three days
zvonat [6]

Answer:

  f)  a[n] = -(-2)^n +2^n

  g)  a[n] = (1/2)((-2)^-n +2^-n)

Step-by-step explanation:

Both of these problems are solved in the same way. The characteristic equation comes from ...

  a[n] -k²·a[n-2] = 0

Using a[n] = r^n, we have ...

  r^n -k²r^(n-2) = 0

  r^(n-2)(r² -k²) = 0

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  a[n] = p·(-k)^n +q·k^n . . . . . . for some constants p and q

We find p and q from the initial conditions.

__

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  a[0] = 0 = p + q

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Dividing the second equation by 2 and adding the first, we have ...

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The solution is a[n] = -(-2)^n +2^n.

__

g) k² = 1/4, so k = 1/2.

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Multiplying the first equation by 1/2 and adding the second, we get ...

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