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olga_2 [115]
3 years ago
13

The length of a rectangle is 2 cm more than the width. The perimeter is 20 cm. Find the length and width

Mathematics
1 answer:
Firdavs [7]3 years ago
6 0

Answer:

length = 7

width = 3

Step-by-step explanation:

the rectangle has four sides. All the sides added together give the 20 cm perimeter .

first find out the the approximate measurement of one side .

20÷4 = 5 cm

now you need to do addition and subtraction.

the width is 2cm less than the length

therefore the width = 5 - 2= 3cm

the length is 2cm more

therefore the length = 5 + 2 = 7 cm

7cm+7cm + (3cm ×2 ) = 20 cm .

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The function f determines the cost (in dollars) of a new Honda Accord in terms of the number of years t since 2000. That is, f (
xenn [34]

Complete  Question

The function f determines the cost (in dollars) of a new Honda Accord in terms of the number of years t since 2000. That is, f ( t ) represents the cost (in dollars) of a new Honda Accord t years after 2000. Use function notation to represent each of the following. The cost (in dollars) of a new Accord in 2006?

A. How much more a new Accord costs in 2013 as compared to the cost of a new Accord in 2010?

B. A new Accord in 2013 is how many times as expensive as a new Accord in 2010?

C. In  2016 , some cars cost  $980 more than the cost of a new Accord.How much does the other cars cost (in dollars)in 2016?

Answer:

a

     The cost of  a new Accord in 2013 compared to 2010 is  z  =  f(13) -  f(10)

b

   The magnitude at which the cost of   a new Accord in 2013 is greater          than the cost in 2010 is  

          x =  \frac{f(13)}{f(10)}

c

    The cost of the other cars is 2016 is   r  =  980 + f(16)

Step-by-step explanation:

From the question we are told that

     The cost (in dollars) of a new Honda Accord is  f(t)

       Where t is  number of years after 2000

The cost of the  Honda Accord at 2013 is  

        f(2013 - 2000) =  f(13)

The cost of the  Honda Accord at 2010 is  

        f(2010 - 2000) =  f(10)

So the cost difference between 2013 and 2010 is mathematically evaluated as

         z  =  f(13) -  f(10)

Let constant at which the cost of Honda Accord in 2013 is greater than its cost at 2010 be  x

So

      f(13) =  x f(10)

=>      x =  \frac{f(13)}{f(10)}

  The cost of the Honda Accord in 2016 is mathematically evaluated as

          f(2016 - 2000) =   f(16)    

Now the cost of these other cars is  mathematically evaluated as  

         r  =  980 + f(16)

7 0
3 years ago
Sally needs 2/3 of a pound of potatoes. This is 1/3 of a pound more than 4/3 of the potatoes Sally has in her pantry
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X =\frac{1}{4}

So, Sally has \frac{1}{4} pound of potatoes in her pantry.

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