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3 years ago

This is my question. If Andy drove 840 miles in 12 hours. How far could he drive in hours? Help me?

Mathematics

1 answer:

stellarik [79]3 years ago

7 0

Answer:

840mi. - 12 hrs

x - 3 hrs

This is a simple cross multiplying problem.

840 _ 12

x -- 3 ⇒12x=3(840) ⇒ 4x=280 ⇒ x=70 miles

Step-by-step explanation:

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The park shown is in the shape of a square. Is the perimeter rational or irrational? Area = 24,200 yd 2

romanna [79]

Answer:

Perimeter is irrational

Step-by-step explanation:

The attachment is missing but the question is still answerable

Given

$Area = 24200 yd^2$

Required

Determine if the Perimeter is rational or not

First, we need to determine the sides of the square;

$Area = Length * Length$

Substitute $Area = 24200 yd^2$

$24200 = Length * Length$

$24200 = Length^2$

Take Square root of both sides

$\sqrt{24200} = Length$

$Length = 155.563492$

The perimeter of a square is calculated as:

$Perimeter = 4 * Length$

$Perimeter = 4 * 155.563492$

$Perimeter = 622.253968$

Because the value of perimeter can't be gotten by dividing two integers, then perimeter is irrational

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3 years ago

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marishachu [46]

$\text {Hi! To solve this problem you must...}$

$\text {Do Keep Change Flip (KCF):}$

$\text {Keep: -3/8}$

$\text {Change: / into *}$

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$\text {The Final Step is to Multiply:}$

$\text {Note: When Multiplying Fractions you multiply Numerator by Numerator}$

$\text {and Denominator by Denominator}$

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4 0

3 years ago

Divide 15 by v. Then, subtract 7.

rosijanka [135]

A is the correct answer

hope that helps:)

4 0

3 years ago

Read 2 more answers

A corner of a rectangle is cut, creating a trapezoid.

forsale [732]

Answer:

the last option of 135°.

Step-by-step explanation:

The total degree of the rectangle is 360°. But it was sliced, so with the remaining measurements, subtract each of them from 360°.

90°+90°+45°+x°=360°

225°+x°=360° add all of the values on the left side, then subtract 225 on both sides to solve for the value of x°.

x°=135°

4 0

3 years ago

Two years ago, Paul bought $350 worth of stock in a cell phone company. Since then the value of his stock has been increasing at

zalisa [80]

Answer: $384.13 ( rounded)

Original number: $384.125

Step-by-step explanation:

Find 9.75% of Paul's original stock, to find out how much it increased.

9.75*350/100=34.125

Add $34.125 to his original stock.

$384.125

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3 years ago