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Tamiku [17]
2 years ago
9

The length of a rectangle is 9 inches more than half the width. Find the length if the perimeter is 60 inches.

Mathematics
1 answer:
valentina_108 [34]2 years ago
5 0

Answer:

Length = 10.435 inches

Step-by-step explanation:

Let the length be l

Let the width be w

Since the length is 9 inches more than half the width.

Then;

L = 0.5w + 9

Perimeter of a rectangle is;

P = 2Lw

Thus;

P = 2w(0.5w + 9)

Since perimeter = 60

Then;

2w(0.5w + 9) = 60

w² + 18w = 60

w² + 18w - 60 = 0

From quadratic formula;

w ≈ 2.87 in

L = 0.5(2.87) + 9

L = 10.435 in

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6 0
3 years ago
A hockey puck has a height of -2.5 cm. What is the height of 7 hockey pucks?
svlad2 [7]

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3 0
2 years ago
Solve 2x+y=3 x+y=5 in substitution method
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---------------
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4 0
3 years ago
Endpoint: (9,-10), midpoint: (4,8)
Alika [10]

Answer:

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Step-by-step explanation:

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You took the x values of both points and put them in the equation.

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5 0
3 years ago
How long does it take an SR-71 Blackbird to make a surveillance run of 10,026 miles if it travels at an average of 2,228 mph
g100num [7]
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t = \frac{10026}{2228}

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4 0
2 years ago
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