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Margarita [4]
3 years ago
7

A jet travels 3950 miles from Chicago to London and then returns. The total flying time for the roundtrip is 16.5 hours. The ret

urn trip takes longer due to the wind. If the jet's average speed with no wind is 485 mi/hr, what is the average speed of the wind during the round trip flight? Round to the nearest mi/hr
Mathematics
1 answer:
Pachacha [2.7K]3 years ago
6 0
the answer is473 miles per hour
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6.
stiks02 [169]

Answer:

Below.

Step-by-step explanation:

a. (x - √5)(x + √5)

= x(x + √5) - √5(x + √5)

= x^2 + √5x - √5x - 5

= x^2 - 5.

b. 10 - 3x^2

= (√10 - √3x) (√10 + √3x)

6 0
3 years ago
Solving Expressions Analytically Consider the following equation: x3+4x2+4x+16=0. Solve for x. Your answer should be stored in a
Shalnov [3]

Answer:

List is {-2i, 2i, -4)

Step-by-step explanation:

This is a third order polynomial, so we expect three roots (solutions).

Note that we can factor this expression by grouping:

(x²)(x + 4) + (4)(x + 4) = 0, or

(x + 4)(x² + 4) = 0

The factor (x + 4) corresponds to the root/solution x = -4, and:

The other factor (x² + 4) corresponds to the roots/solutions x = 2i and x = -2i.

List is {-2i, 2i, -4)

5 0
4 years ago
Rational numbers are __ natural numbers
Brums [2.3K]
Lol that’s why not I just got to tell
8 0
3 years ago
Read 2 more answers
Clancy has 423 cups of yogurt to share with his friends at a party. Each guest will receive 1 serving of yogurt which is 34 of a
Amanda [17]

According to the number of cups, 564 people can be invited to the party.

Step-by-step explanation:

This is a simple question of cross multiplication

<u>DATA:</u>

<em>1. Total number of cups of yogurt is 423 cups</em>

<em>2. 1 serving = \frac{3}{4} th of a cup</em>

<em>3. Each guest gets \frac{3}{4} of a cup or 1 serving</em>

<em>4. Find out how many guests can be invited to the party,</em>

Cups : People

 \frac{3}{4} : 1

423   :     p

<em>5. Cross multiply</em>

\frac{3}{4} p = 423 x 1

3p = 423 x 4

p = \frac{1692}{3}

p = 564

Therefore, according to the number of cups, 564 people can be invited to the party.

Key word: Multiplication

Learn more about multiplication at

  • brainly.com/question/2166248
  • brainly.com/question/573534
  • brainly.com/question/1998796

#LearnwithBrainly

3 0
4 years ago
Find the value of the expression
astraxan [27]

Answer:

19

Step-by-step explanation:

5*7 - 4*4

PEMDAS says multiply and divide first

35 - 16

Then add and subtract

19

7 0
3 years ago
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