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iren [92.7K]
2 years ago
12

about 2/5 of Joys cottage property is covered with trees. About 21 km2 are open fields. In Km2, how much of her property is cove

red in trees
Mathematics
1 answer:
Studentka2010 [4]2 years ago
7 0

Fractions are written as the ratio of two integers. 8.4km^2 of her property are covered in trees

<h3>Ratios and proportions</h3>

Fractions are written as the ratio of two integers

Given the following parameters

total area of open field = 21km^2

If 2/5 of Joys cottage property is covered with trees, the amount covered in trees is expressed as:

Amount covered in trees = 2/5 * 21

Amount covered in trees = 42/5

Amount covered in trees  = 8.4km^2

Hence 8.4km^2 of her property are covered in trees

Learn more on ratio here: brainly.com/question/2328454

#SPJ1

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Set up and solve the following using dimensional analysis.
Softa [21]
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      (See explanation at the bottom)

         =      (5400 inch) x (1 foot / 12 inch) x (1 mile / 5280 foot)

         =      (5400 x 1 x 1 / 12 x 5280)  (inch - foot - mile / inch - foot) 

         =          0.0852  mile  


2).  Multiply (16 week) by (7 day/week) then by (24 hour/day)
       then by (60 minute/hour) then by (60 sec/minute).

3).  Multiply (54 yards) by (3 foot/yard) then by (1 meter/3.28 foot)
       and then by (1000 mm/meter)

4).  Multiply (36 cm/second) by (3600 second/hour) then by (1 meter/100 cm)
      then by (1 mile/1609.3 meter).

5).  Look up how many grams in a pound  ('P')
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      Multiply (1.09 g/mL) by ( 1 pound/ P gram) then by (1 gallon/ G mL)

6).  Multiply (32 foot/sec) by (1 meter / 3.28 foot) then by (60 sec/minute).


Each time I told you to multiply by something, it was always a fraction
where the numerator and denominator are equal, like (60 seconds/minute)
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When you multiply, KEEP the units in the product, and then, after you multiply, you can 'cancel' units out of the top and bottom of the product.
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4 0
3 years ago
an electrician charges a fee of $50 plus $35 per hour. let y be the cost in dollars of using the electrician for x hours. write
Alex Ar [27]

Answer:

y = 50 + 35x we dont know how many hours they worked

Step-by-step explanation:

7 0
3 years ago
Which is not a factor of 60? A.4 B.8 C.12 D.15
nordsb [41]

Answer:

8

Step-by-step explanation:

you could draw a factor tree and list out the factors, however you would not see 8 as an factor

hope this helps!

5 0
3 years ago
Read 2 more answers
From 1960 to 1980 , the consumer price index (cpi) increased from 29.6 to 82.4. If a frozen chicken pie cost $0.28 in 1960 and t
mojhsa [17]

CPI in 1960 = 29.6

CPI in 1980 = 82.4

Growth (%) in CPI = \frac{\text{CPI in 1980 - CPI in 1960}}{\text{CPI in 1960}} × 100

⇒ Growth (%) in CPI = \frac{82.4-29.6}{29.6} × 100

⇒ Growth (%) in CPI = 178.3783.. %

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Now, we know that price of frozen chicken pie in 1960 = $0.28

Also, we know that over 1960 to 1980, frozen chicken pie price grew at the same rate as CPI

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⇒ Price of Chicken Pie in 1980 = 0.28 + 0.50

⇒ Price of Chicken Pie in 1980 = $0.78

Hence, price of chicken pie in 1980 would be ~$0.78

8 0
3 years ago
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katrin [286]
If you divide 537 in to 12 groups. each group would have 44 cookies and you would have 9 left.
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