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abruzzese [7]
2 years ago
13

A town planner creates plans for a new water tower. The tower is 96 feet tall and the tank is circular with a diameter of 64 fee

t.
I. The engineer builds a model of the tower with a scale of 1 inch : 8 feet. What are the dimensions of the model?
II. Suppose the engineer decides to build a second model such that the height of model is 30 inches. What is the scale for the model?
Mathematics
1 answer:
11Alexandr11 [23.1K]2 years ago
7 0
1. 12inch*8inch
2. 1920ft*64ft
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2. ½ of a group of chickens tried to cross the road. Only ¾ of those chickens made it to the other side. What fraction of the or
ArbitrLikvidat [17]
Let me help you visualize this one.

Let's say we have 12 chickens.

OOOOOOOOOOOO

We divide this group in half (1/2 who tried to cross the road.)

OOOOOO

And here, we need to get 3/4 of the 6 left.

3/4 can be represented as 0.75 of 1.

6 times 0.75 equals to 4.5.

OOOOC (Woah, that chicken is split in half!)

What fraction is 4.5 of the original amount?

Well, that's for you to find out! Good luck in solving this question.
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2 years ago
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Round 9,633,202 to the nearest million,
fiasKO [112]

Answer:

10,000,000

Step-by-step explanation:

you round up, so that makes it 10,000,000

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2 years ago
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A mile-runner’s times for the mile are normally distributed with a mean of 4 min. 3 sec. (This would have to be expressed in dec
Vinvika [58]

Answer: 0.0668

Step-by-step explanation:

Given: Mean : \mu=\text{4 min. 3 sec.=4.05 minutes}

Standard deviation : \sigma = \text{2 seconds=0.033333 minutes }

The formula to calculate z-score is given by :_

z=\dfrac{x-\mu}{\sigma}

For x= 4 minutes  , we have

z=\dfrac{4-4.05}{0.03333}\approx-1.5

The P-value = P(z\leq-1.5)=0.0668072\approx0.0668

Hence, the probability that on a given run, the time will be 4 minutes or less = 0.0668

8 0
2 years ago
the number 792 and 990, written as the product of their prime factors are 792 = 23 x 32 x 11 and 990 = 2 x 9 x 5 x 1. Hence, fin
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Answer:

198

Step-by-step explanation:

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1 kilogram is equivalent to about 2.2 pounds. An orangutan weighs 142 pounds. What is its mass in kilograms? Round your answer t
snow_lady [41]

The mass of orangutan is 64.5 kilograms

<em><u>Solution:</u></em>

Given that orangutan weighs 142 pounds

Also given that,

1 kilogram is equivalent to about 2.2 pounds

Now let us convert 142 pounds to kilograms

1 kilogram = 2.2 pounds

\text{1 pound } = \frac{1}{2.2} \text{ kilograms }

Therefore, 142 pounds is equivalent to,

142 \text{ pound } = \frac{1}{2.2} \times 142 \text{ kilogrmas }

\rightarrow \frac{1}{2.2} \times 142 = 64.545 \text{ kilograms }

On rounding to nearest tenth we get, 64.5 kilograms

Thus mass of orangutan is 64.5 kilograms

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2 years ago
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