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pashok25 [27]
3 years ago
5

A rectangle has a width that is 7 centimeters less than its length, and its area is 330 square centimeters. What are

Mathematics
2 answers:
Shalnov [3]3 years ago
8 0

Answer:

w = 15 cm

l = 22 cm

Step-by-step explanation:

A = w·l

w = l - 7

A = (l - 7)·l

330 = l² - 7l

l² - 7l - 330 = 0

l² + 15l - 2l - 330 = 0

l(l + 15) - 22(l + 15) = 0

(l - 22)(l + 15) = 0

l - 22 = 0 => l = 22 cm

l + 15 = 0 => l = - 15 < 0 (f)

w = l - 7 = 22 - 7 => w = 15 cm

natali 33 [55]3 years ago
7 0

Answer:

22,15

Step-by-step explanation:

width = l-7

l*(l-7) =330

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3 years ago
Michael is measuring fabric for quilts for his family she needs 3.4 meters of fabric she has 24.7 cm of fabric how much more cen
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Question No. 4 The area of an equilateral triangle is half the area of a rhombus which in turn is equal to one third the area of
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The triangle which has all the three sides equal in dimension is called the equilateral triangle.

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4 0
1 year ago
The sum of two consecutive numbers is 77. The difference of half of the smaller number and one-third of
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Answer:

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