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3 years ago

11

A rectangular athletic field is twice as long as it is wide. If the perimeter of the athletic field is 96 yards, what are its

dimensions?
What is the width? ______
What is the length? ______

1 answer:

Pachacha [2.7K]3 years ago

8 0

Width = x
length = 2x

96 = x + x + 2x + 2x
96 = 6x
x = 16

2x is simply 16 × 2.

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Step-by-step explanation:

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Answer:

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A shoe store is selling a pair of shoes for $60 that has been discounted by 20%. What was the original selling price? Show your

anzhelika [568]

Answer:

The original selling price was $\$75$

Step-by-step explanation:

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4 years ago

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Correct question is;

A. p(-1.80 < z < 0.20 )

B. p(-0.4 < z < 1.4)

C. p(0.25 < z < 1.25)

D. p(-0.9 < z < -0.6)

Answer:

A) p(-1.80 < z < 0.20) = 0.54333

B) p(-0.4 < z < 1.4) = 0.57466

C) p(0.25 < z < 1.25) = 0.29564

D) p(-0.9 < z < -0.6) = 0.90981

Step-by-step explanation:

A) p(-1.80 < z < 0.20 )

This gives us;

P(z < 0.2) - P(z < -1.8)

From z-distribution tables;

P(z > 0.2) = 0.57926

And P(z < -1.8) = 0.03593

Thus;

p(-1.80 < z < 0.20) = 0.57926 - 0.03593 p(-1.80 < z < 0.20) = 0.54333

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This gives us;

P(z < 1.4) - P(z < -0.4)

From z-distribution table, we have;

P(z > 1.4) = 0.91924

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Thus;

p(-0.4 < z < 1.4) = 0.91924 - 0.34458

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From z-distribution table, we have;

P(z < 0.25) = 0.59871

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Now, to solve this;

p(0.25 < z < 1.25) = 1 - (P(z < 0.25) + P(z > 1.25))

This gives;

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p(0.25 < z < 1.25) = 0.29564

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P(z < -0.9) = 0.18406

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Thus;

p(-0.9 < z < -0.6) = 0.18406 + 0.72575

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