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Free_Kalibri [48]
4 years ago
15

Captain Tellez plans to reach a cruising altitude in his passenger plane and then maintain a cruising speed of 570 miles per hou

r for approximately 400 miles. Which is closest to the length of time, in minutes, that his plane will maintain cruising speed?
A. 0.70
B. 1.43
C. 42
D. 86
Mathematics
1 answer:
gayaneshka [121]4 years ago
7 0

Answer:

option (c)

42 minutes

Step-by-step explanation:

Given in the question:

cruising speed of passenger plane = 570 miles/hour

distance passenger plane travelled = 400 miles

<h3>Formula to use</h3>

distance = speed x time

time = distance / speed

time = 400 / 570

       = 0.7018 hours

           

1 hour = 60 minutes

228000 hours = 60 x 0.7018 minutes

                         = 42.1052 minutes

                         ≈ 42 minutes

         

Closest to the length of time, in minutes, that Captain Tellez's plane will maintain cruising speed is 42 minutes.

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Answer:

$2

Step-by-step explanation:

x = daylily

y = geranium

1x + 5y = 22

13x + 1y = 30

Multiply second equation by 5 and subtract the two equations.

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So one daylily costs 2 dollars

7 0
3 years ago
What is the solution of this equation? 8 − 1 2 x = −6( 3 4 x − 2) + 4 A) x = 1 2 B) x = 2 C) It has no solution. D) It has infin
Andre45 [30]

Step-by-step explanation:

8-12x=-6(34x-2)+4

8-12x=204x-12+4

subtract 8 from both sides.

-12x=204x-20+4

-12 turned to -20 because we subtracted 8.

add 20+4

-12x=204x-24

subtract 204x from both sides

-216x=-24

divide by -216x

So I would say it has infinitely many solutions

6 0
3 years ago
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erastovalidia [21]

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Step-by-step explanation:

6 0
4 years ago
Can someone help me figure out the answer?
love history [14]

Answer:

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Step-by-step explanation:

Let x represent the number of students the college had last year. Then this year's enrollment is ...

... x - 3%·x = 8500

... x(1 - 0.03) = 8500 . . . . . collect terms

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5 0
3 years ago
The point P=\left(-\frac{\sqrt{33}}{7},\,\, y\right)P=(− 7 33 ​ ​ ,y) lies on the unit circle shown below. What is the value of
kifflom [539]

Answer:

y = √-1040/7

Step-by-step explanation:

The equation of a unit circle is expressed as;

x²+y² = 1

Given the coordinate of P = (-33/7, y)

Substitute the coordinate into the give expression and find y;

(-33/7)²+y² = 1

Expand

y² = 1-(-33/7)²

According to difference of two square

y² = (1+(-33/7))1-(-33/7))

y² = (1-33/7)(1+33/7)

y² = -26/7(40/7)

y² = -1040/49

y= √-1040/49

y = √-1040/√49

y = √-1040/7

Hence the value of y is y = √-1040/7

4 0
3 years ago
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