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Roman55 [17]
3 years ago
7

(30 points!)

Mathematics
1 answer:
Vera_Pavlovna [14]3 years ago
8 0

Answer:

The lengths of the sides are 12cm, 28cm and 36cm.

Step-by-step explanation:

Let the smallest side be 4x, the middle side be 7x and the largest side be 9x.

Smallest side + middle side + largest side = 60cm

4x + 7x + 9x = 60

20x = 60

x = 60 ÷ 20

x = 3

Smallest side (4x) = 3 × 4

                             = 12

Middle side (7x)  = 7 × 4

                           = 28

Largest side (9x) = 9 × 4

                            = 36

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Find the length and width of a rectangle whose perimeter is 20 feet and whose area is 21 square feet
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Step-by-step explanation:

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Let x represent the length

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From equation 1

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6 0
3 years ago
Please help! show explanation please​
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2 years ago
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KIM [24]

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