A worker at a computer factory can assemble 8 computers per hour. How long would it take this worker to assemble 200 computers? A. 8 h B. 20 h C. 25 h D. 200 h

QUESTION POSTED AT 03/12/2019 - 12:34 PM

Answered by admin AT 03/12/2019 - 12:34 PM

the right answer for K12 is C. 25 h

Post your answer

Related questions

A keyboard cost $500 it is marked down 20% for a sale. What is the reduced price of the keyboard?

$100 because 20%=0.2 multiplied by $500 is $100

ANSWERED AT 14/12/2019 - 07:17 PM


QUESTION POSTED AT 14/12/2019 - 07:17 PM

Mr. Reciprocal started walking as his New Year's resolution. He calculated that he can walk 1/2 mile in 1/4 of an hour. What is his walking rate in miles per hour

2 hours per hour cause 1/4=15 min 1/2 times 4 equals 2 so  2 miles per hour

ANSWERED AT 14/12/2019 - 07:17 PM


QUESTION POSTED AT 14/12/2019 - 07:17 PM

180 mins is how many hours? Hours:Minutes

180:60 = 3hour
:) :) :) :) :)

ANSWERED AT 14/12/2019 - 07:17 PM


QUESTION POSTED AT 14/12/2019 - 07:17 PM

20 qt =how many gallon

There are 4 quarts to a gallon. 20 quarts equals 5 gallons.

ANSWERED AT 14/12/2019 - 07:16 PM


QUESTION POSTED AT 14/12/2019 - 07:16 PM

20 quarts equals to how many gallons

We already know that 1 quart= 0.25 gallon.

20 quarts* (0.25 gallon/ 1 quart)= 5 gallons.

20 quarts is equal to 5 gallons~

ANSWERED AT 14/12/2019 - 07:16 PM


QUESTION POSTED AT 14/12/2019 - 07:16 PM

A city park is shaped like a right triangle. its base is 20 yards and its depth is 48 yards. what is the area of the park?

A = (depth*base)/2 = (20*48)/2 = 480 sq. yard

ANSWERED AT 14/12/2019 - 07:16 PM


QUESTION POSTED AT 14/12/2019 - 07:16 PM

Andrew has an aquarium that is 16 inches long, 10 inches wide, and 9 inches deep. what is the volume of andrews aquarium?

1140 to the 3rd power(cubed)

ANSWERED AT 14/12/2019 - 07:15 PM


QUESTION POSTED AT 14/12/2019 - 07:15 PM

Which number rounds to 200,000. 289,005,251,659,152,909,149,888

 tHe CORRECT ANSWER IS 152,909.

ANSWERED AT 14/12/2019 - 07:15 PM


QUESTION POSTED AT 14/12/2019 - 07:15 PM

A bar graph shows That Sports books received 9 votes. If the scale is to 20 by twos, Where should the bar end for the sports books?

It should go between the 8 and the 10.

ANSWERED AT 14/12/2019 - 07:13 PM


QUESTION POSTED AT 14/12/2019 - 07:13 PM

Julie sees a jacket that costs $132. She uses her employee discount of 20%. How much does Julie pay for the jacket?

$105.60 Would be the answer!

ANSWERED AT 14/12/2019 - 07:07 PM


QUESTION POSTED AT 14/12/2019 - 07:07 PM

What is the percent markdown of $200 and $160

One way to calculate this is finding what the percentage of 160 is out of 200.
 
160/200= 0.8 

You then have to subtract this number from 1 (since you're asking for a markdown, not up) and get 0.2.

0.2 x 100 = 20%

The markdown is therefore 20%

Alternatively, you could subtract 160 from 200 to get 40, the amount it was marked down by. Then find the percentage of 40 out of 200.

40/200 = 0.2

0.2 x 100 = 20%

ANSWERED AT 14/12/2019 - 07:04 PM


QUESTION POSTED AT 14/12/2019 - 07:04 PM

Tom earned $600 last summer delivering newspapers. This summer, he earned 20% more. How much did he earn this summer?

Tom earned $720 this summer .

ANSWERED AT 14/12/2019 - 07:04 PM


QUESTION POSTED AT 14/12/2019 - 07:04 PM

A rectangular plot of land has an area of 1\8 square mile. its width is 3\20 mile. what is the length of the plot of land?

The area of a rectangle is length times width (A = L*W). Since the length is unknown in our problem,
L = A/W = (1/8 sq.mile)/(3/20 mile) = 5/6 mile

ANSWERED AT 14/12/2019 - 07:03 PM


QUESTION POSTED AT 14/12/2019 - 07:03 PM

Minxia counted 40 green cars and 20 silver cars in the parking lot. If the number of green cars stays the same, how many more silver card would need to be added so the ratio of green cars to silver cars is 1 to 3?

What I did is that: I multiply 40 by 3 because 40 is 1/3 and I have to find the answer for 3/3 (Confusing, sorry I don't know how to explain it correctly). I got 120, subtract 20 from 120 beacause ther is 20 silver cards. The answer is 100

ANSWERED AT 14/12/2019 - 07:02 PM


QUESTION POSTED AT 14/12/2019 - 07:02 PM

Andrew's sandwich consists of 20 gram piece of cheese a 60 gram piece turkey and two 30 gram slices of bread. What is the total weight of Andrew's sandwich in kilograms?

20g+60g+30g+30g=140g. convert to kilograms by moving the decimal over 3 places to the left. 

Answer: 0.14kg

ANSWERED AT 14/12/2019 - 07:02 PM


QUESTION POSTED AT 14/12/2019 - 07:02 PM

What is 3 long divided by 9423. (Workout) please

9423 
three goes into nine three times 
which gives you zero then bring the four down 
three goes into four one time then subtract four from three then that gives you one  than bring the two down which  makes twelve and three goes into twelve four times and 12 subtracted from twelve gives zero and then bring the three down and three goes into three 1 time so that equal zero 
so in total the whole answer should be 3141

ANSWERED AT 14/12/2019 - 07:01 PM


QUESTION POSTED AT 14/12/2019 - 07:01 PM

You can do one half of a job in an hour. Your friend can do one third of the same job in an hour. How long will it take to do the job if you work together?

Three hours
Tour welcome
Have a great day/night

ANSWERED AT 14/12/2019 - 06:59 PM


QUESTION POSTED AT 14/12/2019 - 06:59 PM

Help please if we have 100 apples and jim eats 20 and kellie eats 5 what is the eqation to solve

Answer: 75; 100-25-5


- - To solve this you are going to subtract.
Because you are taking away apples, in this case eating them

- - So: 100-20-5

Answer: 75

✡Hope this helps!





ANSWERED AT 14/12/2019 - 06:58 PM


QUESTION POSTED AT 14/12/2019 - 06:58 PM

The Blue Lake Trail is 11 3/8 miles long. Gemma has hiked 2 1/2 miles each hour for 3 hours. How far is she from the end of the trail?

2 1/2 * 3 

5/2 * 3/1

= 15/2 

15/2 - 11 3/8

15/2 - 91/8 
 
91/8 - 60/8

= 31/8 = 7 7/8

answer=7 7/8








ANSWERED AT 14/12/2019 - 06:56 PM


QUESTION POSTED AT 14/12/2019 - 06:56 PM

One of the world's largest stained glass windows is at kennedy International Airport in New York. It is a rectangle with a height to length ratio of 2 to 25. If the window is 24 feet high how long is it?

We have: 2/25= 24/?

Cross multiply:
2*?= 25*24
⇒ 2*?= 600
⇒ ?= 600/2
⇒ ?= 300

The length of the window is 300 ft~

ANSWERED AT 14/12/2019 - 06:56 PM


QUESTION POSTED AT 14/12/2019 - 06:56 PM

The Johnson's living room rug is 3 sq units wide and 4 sq units long. What is the area of the rug?

Well, the easiest way to do this is simply by using the formula. The area of a rectangle is given by the formula 
AREA= LENGTHXWIDTH
    The reason why i'm using the formula for the area of a rectangle is because a room is usually the shape of a rectangle. Anyway;
The length is 4
The width is 3
  So that is basically
AREA=4 x 3
AREA= 12. 
  So the area is 12n² 
  Hope i helped. Have a nice day

ANSWERED AT 14/12/2019 - 06:53 PM


QUESTION POSTED AT 14/12/2019 - 06:53 PM

Sandra exerci 2/3 hours every day for two weeks while she was on vacation how many hours did Sandra exercise during her vacation

I think the us 1 1/3. 2/3 x 2/1=4/3=1 1/3. Hope it helps and I hope it right.

ANSWERED AT 14/12/2019 - 06:53 PM


QUESTION POSTED AT 14/12/2019 - 06:53 PM

Joanne's bus was 27 minutes late tonight. She called to say she would be about a half hour late for dinner. Explain why this was correct

Because she told them how many hours she would be late

ANSWERED AT 14/12/2019 - 06:52 PM


QUESTION POSTED AT 14/12/2019 - 06:52 PM

What 3 numbers greater than 20 have 9 as a factor

It is 27, 36 and 45.

I did it in my Go Math!!

Your welcome!

ANSWERED AT 14/12/2019 - 06:51 PM


QUESTION POSTED AT 14/12/2019 - 06:51 PM

3 numbers greater than 20 that have 9 as a factor

27,3x9
36,4x9
45 5x9
Is that what you were looking for?

ANSWERED AT 14/12/2019 - 06:49 PM


QUESTION POSTED AT 14/12/2019 - 06:49 PM

List five different times in which the minutes before are the same as the minutes after the hour

Answer:
1:30,
2:30,
3:30,
4:30,
5:30

Explanation:
All of the times that end in 30 will fit the criteria because for example 1:30 is 30 minutes after 1:00 and 30 minutes before 2:00. this would hold true for 1 through 12.
If using the military time system you could have 13-24 as well.

All possible answers are listed below:
0:30,
1:30,
2:30,
3:30,
4:30,
5:30,
6:30,
7:30,
8:30,
9:30,
10:30,
11:30,
12:30,
13:30,
14:30,
15:30,
16:30,
17:30,
18:30,
19:30,
20:30,
21:30,
22:30 and
23:30.     

ANSWERED AT 14/12/2019 - 06:48 PM


QUESTION POSTED AT 14/12/2019 - 06:48 PM

Suppose you have a coupon for a 20% discount. You buy a game that costs $38. The sales tax rate is 5.5%. Sales tax applies to the cost after the discount. What is the total cost of the game?

$32.072 ≈ $32.07
20% of $38 is equal to $7.60
$38 - $7.60 = $30.40
5.5% of $30.40 = 1.672
$30.40 + $1.672 = $32.072 

ANSWERED AT 14/12/2019 - 06:48 PM


QUESTION POSTED AT 14/12/2019 - 06:48 PM