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2 years ago

Suppose the goal for mr. Luockwoods class had been 250 cans. Then 550 cans would have been what percent of the goal?

Mathematics

1 answer:

mr_godi [17]2 years ago

3 0

Answer:

220%

Step-by-step explanation:

To find the percent divide the amout collected (550) by the goal (250)

550/250 = 2.2; convert to a %...220%

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1 year ago

The coordinates of the vertices of a rectangle are (−3, 4) , (7, 2) , (6, −3) , and (−4, −1) . What is the perimeter of the rect

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Find out the what is the perimeter of the rectangle .

To prove

Now as shown in the figure.

Name the coordinates as.

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In rectangle opposite sides are equal.

Thus

AB = DC

AD = BC

Formula

$Disatnce\ formula = \sqrt{(x_{2} - x_{1})^{2} +(y_{2} - y_{1})^{2}}$

Now the points A(−3, 4) and B(7, 2)

$AB = \sqrt{(7- (-3))^{2} +(2- 4)^{2}}$

$AB = \sqrt{(10)^{2} +(-2)^{2}}$

$AB = \sqrt{100+4}$

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Now the points

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$AD = \sqrt{(-4 - (-3))^{2} +(-1- 4)^{2}}$

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Perimeter of rectangle = 2 (Length + Breadth)

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$Breadth = \sqrt{26}\ units$

$Perimeter\ of\ rectangle = 2(2\sqrt{26} +\sqrt{26})$

$Perimeter\ of\ rectangle = 2(3\sqrt{26})$

$Perimeter\ of\ rectangle = 6\sqrt{26}$

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$Perimeter\ of\ rectangle = 6\times 5.1$

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