Tutors Answer Your Questions about Numeric Fractions (FREE)
Question 243593: Help!
2/x+3/y divided by 3/x-2/y seems simple but I can't figure it out. I would think that you would simplify the the numerator by multiplying it by the LCD xy then the same for the denominator but it doesnt work out.
Click here to see answer by oberobic(2304)  |
Question 246727: Perform the indicated operation; write answer in simplest form:
7 and 2/3 – 3 and 1/5
and
2) Perform the indicated operations; write answer in simplest form; note: "•" denotes multiplication:
4 and 2/3 • 3 and 1/3 • 3 and 3/4
Click here to see answer by checkley77(12844) |
Question 248710: hello
i just started ITT & i'm new to college level math my instructor kinda gave an explanation, but i'm still struggling to understand the questions, one in particular is
4/5 with a denominator of 20
i'm supposed to write it as an equivalent fraction, but there is not much to go on, please help me understand
Click here to see answer by jim_thompson5910(35256) |
Question 248710: hello
i just started ITT & i'm new to college level math my instructor kinda gave an explanation, but i'm still struggling to understand the questions, one in particular is
4/5 with a denominator of 20
i'm supposed to write it as an equivalent fraction, but there is not much to go on, please help me understand
Click here to see answer by richwmiller(17219)  |
Question 248741: i have a multiple fractions equation & need to know how to calculate it (i am online with my ps3 so i cannot type it in a normal manner i'll use a / to represent the fraction) the problem is 2/3 - 5/9 + 5/6 = ? these three fractions together are confusing me terribly because i don't know where to start at
Click here to see answer by edjones(8007)  |
Question 240516: Simplify the expressions or solve the equations (If you're solving the equation...STATE THE PROPERTIES)
a) 7x-4y-2y-9-4x+6
So far I have 7x-4x+4y-2y+(-9)+6
=3x+2y-3
=-6y
-combine like terms
-subtract
-solution
Is this correct or too far off, can you please give me the corrections if I am wrong, thank you.
Click here to see answer by olya(2) |
Question 251797: Please help I When Mr. Selig took over as president of Century several years ago, the use of debit cards was just beginning. The Excel file "banking" at the rEsource site contains the data. He would like an update on the use of these cards. Develop a 95 percent confidence interval for the proportion of customers using these cards. On the basis of the confidence interval, is it reasonable to conclude that more than half of the customers use a debit card? Interpret the results.
With many other options available, customers no longer let their money sit in a checking account. For many years the mean checking balance has been $1,600. Does the sample data indicate that the mean account balance has significantly declined from this value? Include confidence interval analysis.
Recent years have also seen an increase in the use of ATM machines. When Mr. Selig took over the bank, the mean number of transactions per month per customer was 8; now he believes it has increased to more than 10. In fact, the advertising agency that prepares TV commercials for Century would like to use this on the new commercial being designed. Is there sufficient evidence to conclude that the mean number of transactions per customer is more than 10 per month? Include confidence interval analysis.
Could the advertising agency confidently say the mean is more than 9 per month? Include confidence interval analysis.
don't understand how to get the answer. Thanks!
Click here to see answer by richwmiller(17219) |
Question 250278: Using the ideas of additive and multiplicative inverse of rational numbers, how would I solve the following equations?
A. -5x+13=-12
B. 1/3(x)-7=25
C. 3x-4=x-12
D. x+11/9=2/3
In the first one, I believe x=5. However I am unsure I figured this correctly.
Thanks for any help you can provide.
Stacy
Click here to see answer by richwmiller(17219) |
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