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Post New Question
All Questions
+0
230750 Questions
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522
1
please help
A metal alloy weighing 12 lb. and containing 60% platinum is melted and mixed with 8 lb. of a different alloy which contains 20% platinum. What percent of the resulting alloy is platinum?
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Guest
Mar 9, 2020
0
574
1
+4
Arithmetic sequence
(4x+1), (4x+3), (12x+1) are the first three in an arithmetic sequence, solve for x.
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SanityKillz
Mar 9, 2020
0
507
1
please any help
I already solved 1-4, but I need help with 5.
A marching band performs on the football field at half-time. As they perform, the members of the band stand in the shape of a sinusoidal function. While playing, they move, but still
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Guest
Mar 9, 2020
0
618
1
please help needed
A video game system and several games are sold for $560. The cost is the games is 3 times as much as the cost of the system. Find the cost of the system and the cost of the games.
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Guest
Mar 9, 2020
0
326
0
help please!
Suppose that we have a 15-letter alphabet. How many 6-letter words have exactly 3 consecutive letters the same?
Guest
Mar 9, 2020
0
520
1
help
In 1936, the number of events in the Winter Olympics was 17. The 1998 Winter Olympics in Nagano, Japan, included 68 medal events. Find the percent increase in the number of events in the Winter Olympics from 1936 to 1998.
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Guest
Mar 9, 2020
+6
939
1
+2862
Stop Disliking Melody's Posts!!!
I just checked one of her posts and I realized it had -4 likes to it.
Then I checked her profile and a lot of her posts were either low or had -1.
read more ..
off-topic
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CalculatorUser
Mar 9, 2020
+1
793
6
+50
I would like to bring up this problem that has already been answered
This is the problem: https://web2.0calc.com/questions/base-number-arithmetic
This problem might be fun to try, Hereka's solution is wrong, see if you can see where the mistake is.
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Zekken
Mar 9, 2020
0
507
1
help
The difference between two numbers is 40. The first number and four times the second number is 55. Find the two numbers and show your work.
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Guest
Mar 9, 2020
0
513
1
I have a score of 37/100 on an exam.
The average (Mean) score on this exam was 59.82 and the standard deviation was 20.237. What would my new score be if the exam was curved to a new average (Mean) of 80 and a new standard deviation of 10?
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Guest
Mar 9, 2020
0
672
1
need help
It takes 2 hours for faucet A to fill a tank, and it takes faucet B 3 hours. How many hours will it take the faucet to fill the tank together
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Guest
Mar 9, 2020
0
1043
1
+4
help please
On many cell phones with GPS, an approximate location can be given before the GPS signal is received. This is done by a process called triangulation, which works by using the distance from two known points. Suppose there are two cell phone towers within
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glosammy
Mar 9, 2020
0
566
1
please help ASAP!!!
Austin wants to make twelve gallons of 46% acid solution by mixing together 65% acid solution and a 5% acid solution. How much of each solution should he use?
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Guest
Mar 9, 2020
0
411
2
I don't understand
One day, Larry writes down the numbers 1, 2, ..., 999. Larry chooses one of the digits written down at random. What is the probability that Larry chooses a 7?
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Guest
Mar 9, 2020
+1
608
3
pls help
pls help thank u!
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Guest
Mar 9, 2020
0
346
1
help pretty please
Find the number of ways of distributing 4 identical balls among 4 identical boxes.
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Guest
Mar 9, 2020
0
329
1
please help
Whats the probability of getting 1 or 3 fives on 10 rolls of a fair die?
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Guest
Mar 9, 2020
0
575
2
urgent
A coin is tossed 9 times, and at least 7 of the tosses were heads. How many different sequences of tosses could there have been?
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Guest
Mar 9, 2020
0
315
0
help
A school has between 150 and 200 students enrolled. Every afternoon, all the students come together to participate in gym class. The students are separated into six distinct sections of students. If one student is absent from school, the sections can all
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Guest
Mar 9, 2020
0
2591
1
If a particular utility burned 2.10 million tons of coal that was 2.00% sulfur by weight, how many tons of sulfur dioxide was emitted?
If a particular utility burned 2.10 million tons of coal that was 2.00% sulfur by weight, how many tons of sulfur dioxide was emitted?
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Guest
Mar 9, 2020
0
1
976
2
please help
Kathy and Cheryl are walking in a fundraiser. Kathy completes the course in 5.4 hours and Cheryl completes the course in 9 hours. Kathy walks two miles per hour faster than Cheryl. Find Kathy's speed and Cheryl's speed in miles per hour.
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Guest
Mar 9, 2020
0
1596
1
halp
There are ten people in the Baking Club, including Mark. They choose 3 people to form an executive committee.
How many possible committees can be formed that do not include Mark?
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Guest
Mar 9, 2020
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