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luda_lava [24]
3 years ago
14

The sears tower in chicago is 1450 feet high. A model of the tower is 24 inches tall. What is the ratio of the height of the mod

el to the height of the actual sears tower.
Mathematics
2 answers:
Dominik [7]3 years ago
8 0

Answer:

\frac{1}{725}

The sear tower is 725 times higher than the sears tower model

Step-by-step explanation:

we know that

The ratio of the height of the model to the height of the actual sears tower is equal to the scale factor

Let

z------> the scale factor

x-------> the height of the model

y-------> the height of the actual

so

z=\frac{x}{y}

we have

x=24\ in

y=1,450\ ft

substitute

z=\frac{24}{1,450}\frac{in}{ft}

simplify

z=\frac{12}{725}\frac{in}{ft}

Remember that

1\ ft=12\ in

so

\frac{12}{725}\frac{in}{ft}=\frac{1}{725}\frac{ft}{ft}

Gemiola [76]3 years ago
8 0
The sear tower is 725 times higher than the sears tower model
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Answer:

The relative growth rate is 18.75%.

Step-by-step explanation:

If the world population was 2.560 million in 1950 and 3.040 million in 1960, it means that there was a growth of 480 million people in 10 years. Thus, it is a growth of 18.75%, according to the following calculation:

2,560 = 100

480 = X

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Therefore, if this growth rate were to be maintained, in subsequent years the world population would evolve as follows:

1970: 3,040 x 1.1875 = 3,610 million inhabitants

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3 years ago
The solutions to the equation -4|x + 9| = -8 are:<br> 7, 11<br> 7, -11<br> -7, 11<br> -7, -11
dimaraw [331]

Answer:

option 4

Step-by-step explanation:

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<u>To </u><u>FinD</u><u> </u><u>:</u><u>-</u><u> </u>

=> Solution of the equation .

<u>Solving </u><u>it </u><u>:</u><u>-</u><u> </u>

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5 0
3 years ago
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Answer:

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Step-by-step explanation:

The speed ratio is ...

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Then the ratio of truck speed to the sum of their speeds is ...

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Since time is inversely proportional to speed, the two vehicles will meet after 1/2.5 times the time the truck takes to cover the distance. That is ...

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_____

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Anna35 [415]

Answer:

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so, your answer has to be y = m(aka 4)x + b(aka 3)

or,

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5 0
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