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Levart [38]
2 years ago
8

Aura built a scale model of a building using a scale in which 4 inches represents 60 feet. The height of the building is 420 fee

t.
What is the height of the scale model in inches?
Mathematics
1 answer:
Andre45 [30]2 years ago
7 0

Answer:

  28 inches

Step-by-step explanation:

We're told that each 60 ft is represented by 4 inches of model. 420 feet is 7 times 60 feet, so the model will be 7 times 4 inches.

The height of the scale model is 28 inches.

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algol13
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3 years ago
Please can I get some type of help on questions 27 and 29 PLEASE ANYONE
nasty-shy [4]

Answer:

Number 27:Population density refers to the number of people who live in a defined land area (usually square miles or square kilometers). So, if two million people live in ten square miles, the population density is two hundred thousand people per square mile.

Number 29:Your heart beats about 100,000 times in one day. And about 35 million times in a year.And 128 beats in one minute

Step-by-step explanation:

8 0
2 years ago
The number of fiction books in a libary is %150 of the number of non-fiction books. the libary has 4,000 books in total. how man
Nitella [24]

Answer:

The number of

Fiction books = x = 2400 fiction books

Non fiction books = y = non fiction books

Step-by-step explanation:

Let the number of

Fiction books = x

Non fiction books = y

The libary has 4,000 books in total.

Hence: x + y = 4000........ Equation 1

The number of fiction books in a libary is %150 of the number of non-fiction books.

x = 150% of y

x = 150/100 × y

x = 1.5y

We substitute 1.5y for x in Equation 1

x + y = 4000

1.5y + y = 4000

2.5y = 4000

y = 4000/2.5

y = 1600 non fiction books

Solving for x

x = 1.5y

x = 1.5 × 1600

x = 2400 fiction books.

Therefore,

The number of

Fiction books = x = 2400 fiction books

Non fiction books = y = non fiction books

5 0
2 years ago
If x2 = 60, what is the value of x?
MArishka [77]

Answer:

x = ±2sqrt(15)

Step-by-step explanation:

x^2 = 60

Take the square root of each side

sqrt(x^2) = ±sqrt(60)

x = ±sqrt(60)

x = ±sqrt(4 *15)

x = ±2sqrt(15)

7 0
2 years ago
Read 2 more answers
Whats 2+2? im really struggling with this question, pls help
EleoNora [17]

Answer:

its 4

Step-by-step explanation:

1 2 3 4

hope i helped

8 0
3 years ago
Read 2 more answers
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