What will you better be prepared for by learning about the animals you photograph

Two machines can finish a job in StartFraction 20 Over 9 EndFraction hours. Working alone, one machine would take one hour long

Alborosie

Answer

5 hours

Explanation

The two working together can finish a job in

$\frac{20}{9} \: hours$

Also, working alone, one machine would take one hour longer than the other to complete the same job.

Let the slower machine working alone take x hours. Then the faster machine takes x-1 hours to complete the same task working alone.

Their combined rate in terms of x is

$\frac{1}{x} + \frac{1}{x - 1}$

This should be equal to 20/9 hours.

$\frac{1}{x} + \frac{1}{x - 1} = \frac{9}{20}$

Multiply through by;

$20x(x - 1) \times \frac{1}{x} +20x(x - 1) \times \frac{1}{x - 1} = 20x(x - 1) \times \frac{9}{0}$

$20(x - 1) +20x = 9x(x - 1)$

$20x - 20+20x = 9{x}^{2} - 9x$

$9{x}^{2} - 9x - 20x - 20x + 20= 0$

$9{x}^{2} - 49x + 20= 0$

Factor to get:

$(9x - 4)(x - 5) = 0$

$x = \frac{4}{9} \: or \: x = 5$

It is not feasible for the slower machine to complete the work alone in 4/9 hours if the two will finish in 20/9 hours.

Therefore the slower finish in 5 hours.

8 0

2 years ago

Dante went to change the date for an appointment in his Outlook calendar. He double-clicked in the appointment and made the chan

meriva

The correct answer is that Dante did not click the Save and Close button before exiting the appointment.

When you make a change to an appointment in the Outlook calendar you need to click on Save in order to have the change saved in your calendar. If you do not do this the appointment will revert back to the original time and date when you exit the program.

3 0

3 years ago

6. When working with a file,

likoan [24]

Answer:

When working with a file, stabilize the blade in a vis or against a solid surface such as a work bench to avoid injury and to ensure an even stroke

Explanation:

The file can be used to sharpen a blade to increase the effectiveness of the blade. In order to properly sharpen a file in a safe manner, the blades to be sharpen, which ae usually relatively flexible as compared to the file, should be made stable during the repetitive forward and backward notion of the file, for safety, to avoid being injured by the recoil of the blade, and also to ensure that the stroke is evenly applied to the blade.

4 0

2 years ago

write an algorithm that reads to values, determines the largest value and prints the largest value with an identifying message

REY [17]

Answer:

I'm unsure of what language you are referring to, but the explanation below is in Python.

Explanation:

a = int(input("Input your first number: "))

b = int(input("Input your second number: "))

c = int(input("Input your third number: "))

maximum = max(a, b, c)

print("The largest value: ", maximum)

6 0

2 years ago

you are installing two new hard drives into your network attached storage device your director asks that they be put into a raid

Genrish500 [490]

Question options:

a. RAID 0

b. RAID 1

c. RAID 5

d. RAID 6

e. RAID 10

Answer:

d. RAID 6

Explanation:

RAID is Redundant Array of Inexpensive/Independent Disks. RAID combines low cost physical hard disk drives in one hard disk drive. RAID is used to achieve data redundancy(data backup but with synchronization) or improved performance or both.

To get what the director requires he would need to use RAID 6. RAID 6 is RAID level optimized to achieve data redundancy but with slow performance.

7 0

2 years ago