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Basic Math/Questions
| Subject | Date Asked | Expert |
| fraction | 2/7/2012 | John Zalewski |
| Q: find each sum or difference. write the anwser in simplest form 1... one and three tenths + three and ... A: David. 1 3/10 + 3 2/5 The first step in this problem is to convert each mixed number into an ... | ||
| ratio in simplest form | 2/6/2012 | John Zalewski |
| Q: How do you find Ratio in simplelest form? my questions are 40:5 27:3 A: Carissa. To write a ratio in its simplest form, divide each side of the ratio by the largest number ... | ||
| algebra question | 2/1/2012 | Lynn Houston |
| Q: I have a question that I just can't get. The question is 5000 = 9000/(1 + r)^10 I can get up to the ... A: divide both sides by 9000 and reduce 5/9 = (1 + r)^10 Take the 10 root of both sides. Not sure ... | ||
| Math | 1/30/2012 | John Zalewski |
| Q: A man's rent for one month was twice his food bill for the month. His food bill was 3 times his ... A: Brandi. Make rent = x. Therefore, food bill = 1/2x. Electric bill = 1/3(1/2x), or 1/6x. ... | ||
| Percentage Question | 1/29/2012 | Lynn Houston |
| Q: This is not a homework question; I am an adult who needs an explanation. Is it correct that 5 is ... A: Because you're starting with 2 different numbers. In one case you're dividing 4 into parts and in ... | ||
| decimals | 1/29/2012 | John Zalewski |
| Q: arrange the decimals from the smallest to largest 6.00 0.6 0.006 6.6 0.06 0.00006 and the reason ... A: Kaylynn. 0.00006 0.006 0.06 0.6 6.00 6.6 To answer this question, you must recognize the ... | ||
| Basic Decimal fraction word problem | 1/26/2012 | John Zalewski |
| Q: I'm working on A.A. Klaf's 'Arithmetic Refresher,' and I'm not quite sure how the answer is ... A: Jason. Make Total Income = x Therefore, you can make an equation. Total Income (x) - .29x (29% of ... | ||
| General History of Math | 1/22/2012 | Abe Mantell |
| Q: Who in your opinion is comparable to Carl Friedrich Gauss, as a Mathematician rather than as a ... A: Certainly Leonard Euler has to be considered as one of the greatest mathematicians of all time (if ... | ||
| equations | 1/10/2012 | John Zalewski |
| Q: how do you solve for -3/4x+1/4= 11/8 Can you help me? A: Rachelle. -3/4x + 1/4 = 11/8 For questions like these, you want to get the 'x' by itself. The ... | ||
| equivalent fractions | 1/3/2012 | John Zalewski |
| Q: what is equivalent to 2.56 and what is these fractions as decimals:7/25 and 25/16 A: Tete. 2.56 is equivalent to 2 56/100 (.56 is 56 hundredths). To convert 2 56/100 to an improper ... | ||
| Rates | 12/25/2011 | Abe Mantell |
| Q: Here is my15 workers can finish a job in 7 days. If I want to find the number of days 21 workers ... A: We can think of the (15 workers)x(7 days) = 105 worker-days as the amount of work needed to complete ... | ||
| Confusing Calculation | 12/7/2011 | Lynn Houston |
| Q: How should this calculation be solved? (1/7)/ 15 X 21 = ? I get two answers. If 1/7 is divided by ... A: As you have it (1/7)/ 15 X 21, then 1/5 is the correct answer. Remember PEMDAS, which stands for ... | ||
| Ehh | 11/30/2011 | John Zalewski |
| Q: How can you write a ratio in lowest form How do you find the area of one shaded area A: Heather. To write a ratio in simplest terms, divide both parts of the ratio by the largest number ... | ||
| Units X Units Calculation | 11/29/2011 | Lynn Houston |
| Q: 15 workers can finish a job in 7 days. 1 worker can do the same job in 105 days. Here's the ... A: Ok, the only reason your "reduction" works is because you've already multiplied the 1/21 and 15 and ... | ||
| Units X Units Calculation | 11/28/2011 | Lynn Houston |
| Q: 15 workers can finish a job in 7 days. 1 worker can do the same job in 105 days. Here's the ... A: Not sure what you're doing with your calculations, but you can't just "reduce" (ie divide by 3), 2 ... | ||
| estimate w/fractions/estimate the sum or difference | 11/19/2011 | Lynn Houston |
| Q: 3 7/15+5 6/7-1 1/8= 6 9/10-2 7/16= I tried but I am not sure of my answers...thanks ANSWER: 3 ... A: The answer depends on how you round. If you round to the whole number, then yes, the answers are ... | ||
| conversion | 11/10/2011 | John Zalewski |
| Q: i understand that cc = ml. my question is what is the equivalent of 1.4 cc in teaspoons. ANSWER: ... A: Shasta. Yes, it's slightly more than 1/4 teaspoon. For a more precise measurement: Fill a 1/4 ... | ||
| problem solving involving fractions | 11/7/2011 | John Zalewski |
| Q: Alan spent 4/9 of his money. If he had £65 left, how much had he first.... please help me to ... A: Peter. If Alan has 65 lira after spending 4/9 of his money, that means that he still has 5/9 of his ... | ||
| conversion | 11/7/2011 | John Zalewski |
| Q: i understand that cc = ml. my question is what is the equivalent of 1.4 cc in teaspoons. A: Shasta. There are approximately .284 teaspoons in 1.4 cc. You can get there by doing this ... | ||
| Adding percentages | 11/6/2011 | Lynn Houston |
| Q: My question is how do you add two percentages together and if you divide the total by 200. For ... A: if percentages are giving you problems, just treat them as fractions... when you add fractions with ... | ||
| Math | 11/1/2011 | Lynn Houston |
| Q: I need to know how to do variable expressions. My teacher it trying to teach me but I just don't get ... A: 9x-8x^2-12 + 7x^3 + (-3x^3-7x^2+5x-9) If this is the correct problem, then here is how you solve it. ... | ||
| Math problems about Digits | 10/30/2011 | Lynn Houston |
| Q: A book has 168 pages. How many digits are used to print the page numbers of the book? Please help! ... A: 9 pages have 1 digit (1-9) 90 pages have 2 digits (10-99) 69 pages have 3 digits (100-168) so the ... | ||
| Beginning Integers | 9/25/2011 | John Zalewski |
| Q: I was wondering how to simplify a negitive number? Thanks, and I am hoping you can answer my ... A: Nikki. Simplifying generally has to do with reducing fractions. For example, with the negative ... | ||
| convert g/ml to kg/l | 9/21/2011 | John Zalewski |
| Q: I saw on of your answers to the question how to change from g/ml to kg/l and you answered that you ... A: Chaim. When you do dimensional analysis, you have to make sure that the units you wish to have ... | ||
| Math models Experimental & Theoretical Probability | 9/20/2011 | John Zalewski |
| Q: Standard deck of 52 cards nd than die is tossed. P(black card, 2 or 5) A: Kassie. There are 52 cards in a standard deck, and so 26 of them are black. The probability of ... | ||
| Math | 9/19/2011 | John Zalewski |
| Q: Round 63,496 to the nearest 1000 A: Tonishia. 63,496 rounded to the nearest 1000s place is 63,000. The thousands place is the fourth ... | ||
| dimensional Analysis | 9/16/2011 | Lynn Houston |
| Q: "1.The reccommended dosage of Benadryl is 1.25 mg of Benadryl for every 2kg of body weight. How much ... A: First you need to convert the dosage to lbs or the child's weight to kgs and lenght to miles or ... | ||
| dimensional Analysis | 9/15/2011 | John Zalewski |
| Q: 1.The reccommended dosage of Benadryl is 1.25 mg of Benadryl for every 2kg of body weight. How much ... A: Michaelyn. 1. 1.25 mg/2 kg x 1 kg/2.2 lb x 37 lb 1.25 mg/2 kg (body weight) is given in the ... | ||
| Changing percent to fraction lowest terms | 9/7/2011 | John Zalewski |
| Q: How do i change 7-1/2% to a fraction? A: Cassie. To convert 7 1/2% to a fraction, first change the 1/2 to a decimal by dividing 2 into 1, ... | ||
| Mathematica - Scientific,Engineering and Mathematical fields | 8/18/2011 | Abe Mantell |
| Q: Looks like a Excellent Program for mathematical modeling and visualization. ... A: Yes, Mathematica is a wonderful tool for doing and visualizing mathematics! I use a similar product ... | ||
| Proportion Meaning | 8/12/2011 | Abe Mantell |
| Q: If 5 concrete bricks weigh 20 lbs. what is the weight of 15 bricks of the same kind? I determined ... A: I do not know if the product has a special name or significance. The only practical interpretation ... | ||
| math | 8/9/2011 | John Zalewski |
| Q: rounding numbers to the nearest hundredth and the nearest thousands A: Rosa. Let's take a number, say, .12348. To round to the nearest hundredth, take a look at the ... | ||
| Hours of work | 8/8/2011 | Abe Mantell |
| Q: I worked the following what are my hours that I can bill 8.45 - 5pm with a 40 minute lunch break ... A: > 8.45 - 5pm with a 40 minute lunch break 8 hrs 15 min - 40 min = 7 hrs 35 min > 8am - 5pm with a ... | ||
| Percentages | 8/5/2011 | Abe Mantell |
| Q: Is 9.1% and 9.10% the same? For example, if the employment rate is 9.10% can this percentage be ... A: Numerically 9.1 and 9.10 are the same. However, they imply two different accuracies. 9.1 could be ... | ||
| Mirrored Numbers - (Exact Replica of the Number) - Optics & Real Life Use ? | 7/26/2011 | Abe Mantell |
| Q: What i observe by looking at the Numeric Whole Numbers(Integers) in Mirror (Glass) Object are the ... A: "Mirrored Numbers" have vertical symmetry. I would definitely NOT classify such numbers in any way ... | ||
| Please hep with my fractions. Xxxo | 7/24/2011 | Abe Mantell |
| Q: 27. Simplify: (x+3/ 5) - ( 2x+1/10) 28. SImplify: (x+3/5) + (x-2/2x) 32. Simplify: 1/p^2 - 1/q^2 ... A: Should the fractions be (x+3)/5 instead of x+3/5? I think so... 27. Simplify: ... | ||
| curious | 7/20/2011 | Abe Mantell |
| Q: If one million people died in one year in a country where the population was ten million, how many ... A: If 1,000,000 ppl died in a year, then just divide that by the number of minutes ina year to get the ... | ||
| hellpp!!!!! | 7/20/2011 | Lynn Houston |
| Q: how can i factor mr + ns - nr - ms A: yes, swap the ns and -nr so you have mr - nr + ns -ms, then factor out the r and s. r(m-n) + ... | ||
| Rates | 7/12/2011 | Abe Mantell |
| Q: If an automobile can travel 50 miles in one hour (60 minutes), how long will the same automobile ... A: I gather the question should be: "How long will it take to travel the SAME DISTANCE at 80 MPH?" ... | ||
| I'm having such a hard time with Fractions. | 7/7/2011 | Abe Mantell |
| Q: 8. Simplify: x^4-2x^2y^2+y^4/x^4-x^3y-xy^3+y^4 10. Simplify: z(z-1)= z(z+1) 22. Simplify: ... A: You have many questions here. I'll just answer the first few. Try the others, if you need help, ... | ||
Basic Math
Answers by Expert:
John Zalewski
Top Expert on this page
Expertise
I can help you solve problems involving fractions, decimals, ratios, and algebra. I can teach you how to do math faster, and even in your head. I can teach math definitions, and help you study, if necessary. Please do not ask any graphing, trigonometry, or calculus questions. Try to work through homework questions before asking for assistance.
Experience
I routinely process numbers of all kinds in my head, without need of a calculator.
Education/Credentials
I was an A math student while in high school.
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