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zloy xaker [14]
3 years ago
11

1.

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
4 0

Answer:

Step-by-step explanation:

- An airplane leaves Los Angeles for Denver at a speed of 430 mph. Thirty minutes later another plane going from Denver to Los Angeles leaves Denver, which ... So to begin with plane 1 got a 30 minute head start, so since it was going at 430 miles per ... LOS ANGELES - DENVER...430 miles/hour, x hours.

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For a given set of rectangles, the length is inversely proportional to the width. In one of these rectangles, the length is 12 a
RSB [31]

Answer:

The width is 8 units

Step-by-step explanation:

This is a variation problem we are to work with.

Length is inversely proportional to width, let length be l and width be w

modeling the statement mathematically, we have lw = k where k is the proportionality constant

Now let’s get k from l = 12 and w = 6

k = 12 * 6 = 72

Now for the second rectangle also;

lw = k given l = 9

9w = 72

w = 72/9

w = 8

3 0
3 years ago
Suppose the average yearly salary of an individual whose final degree is a masters is $46 thousand less than twice that of an in
zepelin [54]

Answer:

  • <em><u>average yearly salary of an individual whose final degree is a masters:</u></em><u> $ 66 thousand</u>

<u></u>

  • average yearly salary of an individual whose final degree is a bachelors:<u> $ 56 thousand</u>

Explanation:

You can set a system of equation using the following steps:

1. Name the variables:

  • average yearly salary of an individual whose final degree is a masters: x

  • average yearly salary of an individual whose final degree is a bachelors: y

2. Set the equations that relate the variables:

  • the average yearly salary of an individual whose final degree is a masters is $46 thousand less than twice that of an individual whose final degree is a bachelors:

        equation (1): x = 2y - 46

  • combined, two people with each of these educational attainments earn $122 thousand:

         equation (2): x + y = 122

3. Solve the system:

  • x = 2y - 46 . . . equation (1)
  • x + y = 122 . . . equation (2)

Substitute equation (1) into equation (2)

  • 2y - 46 + y = 122

Solve for y:

  • 3y = 122 + 46
  • 3y = 168
  • y = 168 / 3
  • y = 56 (this means that the average yearly salary with a bachelors degree is $ 56 thousand).

Subsitute the value on y in equation 1, to find the value of x:

  • x = 2y - 46 = 2(56) - 46 = 112 - 46 = 66.

Thus, the average yearly salary of a person with a masters degree is $ 66 thousand.

4 0
3 years ago
How do you solve (3/5)x+1/4=(3/4)x-2/5 for x?
sveta [45]

Answer:

(3/5)x+1/4=(3/4)x-2/5

<=> (3/5)x - (3/4)x= -2/5 - 1/4

<=> x(12/20 - 15/20) = -13/20

<=> x(-3/20) = -13/20

<=> x = 13/3

Step-by-step explanation:

5 0
3 years ago
There are 11 kids at a birthday party. If there are 6 girls and 5 boys at the party, whta fractof the kids are boys?
svetoff [14.1K]

Answer:

Step-by-step explanation: The answer is 5/11.



8 0
2 years ago
Read 2 more answers
The base of a skyscraper is a triangle bordered by three streets: Main Street, Elm Street, and Maple Street. The Elm Street side
Kobotan [32]

Answer:

Step-by-step explanation:

1. 93

2.184

4 0
2 years ago
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