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3 years ago

5

What is the perimeter, in square centimeters, of a rectangle that has a length of 4 centimeters and a width of 15 millimeters? 3

8 cm 19 cm 5.5 cm 11 cm

1 answer:

Scorpion4ik [409]3 years ago

5 0

Answer:

11 cm

Step-by-step explanation:

The rectangle width is 15 mm, which is the same as 1.5 cm.

The formula for P is P = 2W + 2L.

Here, with W = 1.5 cm and L = 4 cm, P = 2(1.5 cm) + 2(4 cm) = 11 cm

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elena-s [515]

$k =1.89$ is the constant of proportionality that represents the relationship between the cost, y, to the number of pounds of potatoes, x .

<u>Step-by-step explanation:</u>

Here we have , The cost of 2 pounds of potatoes is $3.78. We need to find the constant of proportionality that represents the relationship between the cost, y, to the number of pounds of potatoes, x . Let's find out:

Cost is y & number of pounds of potatoes is x :

$y = (k)x$ , where k is constant of proportionality that represents the relationship between the cost, y, to the number of pounds of potatoes, x .

⇒ $y = (k)x$

⇒ $3.78 = (k)2$

⇒ $\frac{3.78}{2} = \frac{(k)2}{2}$

⇒ $\frac{3.78}{2} =k$

⇒ $k =1.89$

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