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marta [7]
3 years ago
6

If the scale factor of figure a to figure b is 7:2 find the perimeter of figure a whenever the perimeter of figure b is 35

Mathematics
2 answers:
Zanzabum3 years ago
5 0

Answer:

122.5

Step-by-step explanation:

The scale factor of two figures is the ratio of the corresponding sides or in this case the perimeters. The scale factor of figure a to figure b is 7:2 this means that for 7 units of perimeter on the a figure, there are 2 units of perimeter on the b figure.

To obtain the perimeter of the figure a we arrange the equation (the ratio is maintained so both sides of the equation are equal):

\frac{7}{2}=\frac{x}{35}

where x will be the perimeter of figure a. We solve for a like this:

x=\frac{35*7}{2}=122.5

a figure perimeter is 122.5

Svetllana [295]3 years ago
3 0

a        7           P

        -------= --------

b        2              35


Using cross products

7*35 = P*2

P = 7*35/2

P = 122.5

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0.35*140= 49


3 0
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The amount of profit, p, you earn by selling knives, k, can be determined by: p=200k-500 a) Determine the constraints on profit
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3 years ago
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F(13) means x equals 13.

Replace x in the equation with 13 and solve:

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3 0
3 years ago
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Add the following military times: 1355 + 0540
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4 0
3 years ago
Jason considered two similar televisions at a local electronics store. The generic version was based off the brand name and was
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Keywords:

<em>Variables, televisions, generic version, TV brand, dimensions </em>

For this case we have two televisions, one generic version and one brand. We know that the generic version represents \frac {2} {3}the size of the brand. We must define two variables that represent the dimensions of the brand TV, so we have:

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Dimensions of the generic TV:

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Thus, the dimensions of the brand TV are 18 inches by 36 inches

Answer:

 The dimensions of the brand TV are 18 inches by 36 inches

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