02/28/16

A and B are two stations 390 km apart. A train starts from A at 10 am and
A and B are two stations 390 km apart. A train starts from A at 10 am and travels towards B at 65 kmph. another train starts from B at 11 and travels towards A at 35 kmph at what time do they meet... more
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02/28/16

What is the area of the shaded region on which an artist can paint?
An ornamental fan has a radius of 6 inches and forms a 120 degree angle when fully open. The small circular region at the base of the fan has a radius of 2 inches. What is the area of the shaded... more
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02/25/16

f(8) if f(x) = x + 11
i need help am so confused on how to do it  
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02/25/16

Find the exact value of each expression
Sin (inverse sin (- pie Over 3))
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02/25/16

derrick live 3 miles from the park.he rode his bike to the park at an average speed of 9mph. how mant miniutes did it take him to ride to the park?
im stuck on my math homework and im in 7th grade
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02/25/16

what fraction of her paycheck did she deposit in each account?
Mrs Lopez spends 9/12 of her paycheck on groceries and bills.  She deposits the rest of the money equally into three accounts. What fraction of her paycheck did she deposit in each account? 
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02/25/16

linear equations using 12 and 16 college credits
upon admitted to berkeley you were credited with 12 credits from your previous institution and you have decided to take 16 credits per quarter in order to meet the graduation requirements for your... more
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02/24/16

if a man walks at eht rate of 5 kmph he misses a train by 7 minutes
if a man walks at eht rate of 5 kmph he misses a train by 7 minutes however if he walks at the rate of 6 kmph he reaches the station 5 minutes before the arrival of the train find the distance... more
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02/23/16

Second grade math
2 hundreds =
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02/23/16

Finding the amount at the end of four hours
One hundred milligrams of a drug are given to a patient. At the end of the hour the number of milligrams of the drug left in the body is 10% less than at the beginnig of the hour. How many... more
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02/23/16

Ordered pairs
the ordered pair (x,y) satisfies the system of equations: 2y-x=-7                                X+2y=3 what is the value of 4y?
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02/23/16

How many gummy bears of each color are in the bin after your purchase?
A bin at a candy store contains 1800 gummy bears. The bin only contains three colors, red,green,and yellow with 65% being red and 15% being green. You walk into the stroe and purchase only red... more
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02/23/16

Finding a pattern
Behind my house is a big field. every winter after a few rainstorms the field seems to attract lots of puddles,mud,and frogs. the frogs are quiet for the most part.however when one starts... more
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02/22/16

How many of each kind of coin are there?
A collection of coins has a total value of 64 cents. There are two more nickels than dimes and threetimes as many pennies as dimes. 
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02/22/16

factor 1-r^2??
This problem is confusing me
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02/22/16

Common Core Performance Coach mathematics grade 7
Julie estimated her towns population at 77500. The actual population of her town is 75000. Find the percent error.
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02/22/16

if a player finished 88 last year and 11 this year what was his percentage of improvement
ranked 88  now ranked 11 what is the percent of improvemnet
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02/22/16

Part 1A) A shoe store buys shoes at a wholesale price and marks them up 80% to calculate the retail price.
Part 1B) The wholesale price varies, depending on the quantity of shoes purchased                                             Quantity 0-20 pairs     21-40 pairs     41-60 pairs    61-80... more
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02/22/16

Determine the number of bricks needed.
For our column, assume the standard size modular brick is 4" in width by 8" in length by 2 3/4" in height ( including mortar).  There are 4 bricks used in each course or layer.  Compute the... more
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02/22/16

can someone help me with this question.
I am not exactly sure what I am supposed to do for this question.  Can someone help me. i know how to do functions but this is completely new.   Let f (x) = 3x2 – 4x – 5 and g(x) = 2x + 1 (a)... more
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02/22/16

Percentage of a Percentage is How much of the whole?
An employee states that she spends 70% of her time taking care of owner's duties.  Of the 70%, she spends 35% of her time paying bills.  How much of the 100% of her time is spent paying bills?  
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02/21/16

Need help using a number line
Mr. Martin ate 4/8 of his pie and Mary ate 3/4 of hers. Who ate more pie? Solve using a number line
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02/21/16

write the linear equation in slope-intercept form of the line that has a slope 1/2 and passes through the point of (8,2)
I'm cool okay and I need to learn how to do math 
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02/21/16

Algebraically determine number of tickets sold
. For our class trip, 130 tickets were purchased. The cost of a faculty ticket was $16,500. The cost of a student ticket was 60% of the cost of a faculty ticket. A total of $ 1,570,800 was... more
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02/21/16

I NEED HELP PLEASE !!!!!!!
Millers hardware store is having a sale on pints and gallons of paint. 107 people bought pints and 132 people bought gallons. 92 people bought just pints. some people bought pints and gallons, and... more
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