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Semenov [28]
4 years ago
9

The area of a circle is 78.5 cm2. What is the diameter of the circle?

Mathematics
2 answers:
Svetllana [295]4 years ago
6 0
Your answer is 157, i'm pretty sure


kirill115 [55]4 years ago
5 0
Hello : 
The area of a circle is : A = <span>π × r² 
r² = A/</span><span>π 
r² = 78.5/3.14
r² = 25
r = 5
but : d = 2r    ... r : ridus and  d : </span><span>the diameter
so : d= 10</span>
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Delvig [45]

Answer:

The amount after 6 months compounded quarterly is $1917.66 .

Step-by-step explanation:

Given as :

The principal amount deposited in account =  $1850

The bank applied rate of interest = r = 7.25% compounded quarterly

The time period of loan = t = 6 months = 0.5 years

Let the Amount after 6 months = $A

Now,<u> From quarterly Compound Interest method  </u>

Amount = principal × (1+\dfrac{\textrm rate}{4\times 100})^{4\times time}

Or, A = p × (1+\dfrac{\textrm r}{4\times 100})^{4\times t}

Or, A = $1850 × (1+\dfrac{\textrm 7.25}{4\times 100})^{4\times 0.5}

Or, A = $1850 × (1.018125)^{2}

Or, A = $1850 × 1.036578

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i.e A = $1917.66

So, The amount after 6 months = A = $1917.66

Hence, The amount after 6 months compounded quarterly is $1917.66 . Answer

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Answer:

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Step-by-step explanation:

0.43

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A shelter has enough food to feed an average of 80 hungry people a day for 14 days. If an average of 32 people are at the shelte
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Answer:

  • <u>35 days. </u>

Explanation

The capacity of the shelter is a constant. It is 80 people × 14 days.

That is an inverse relation: the product of the number of people and the number of days will be always the same.

As the number of people decreases the number of days that the food lasts increases, in a proportion such that the product of the days and the number of people is the same.

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Solving for x:

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The food will last 35 days.

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