10/14/16

(x^7a)^a-b / (x^3a)^a-2b
Expand and simplify the following powers. Give all of the answers in terms of positive exponents.   (x^7a)^a-b / (x^3a)^a-2b   Please help, and explain on how to get the answer. I've spent a... more
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10/14/16

What's the value of 8j-3k?
If 2/3j-1/4k=5/2, what's the value of 8j-3k?
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10/14/16

How much profit did the car wash make in the second month?
You own a car wash with three of your friends. Your total profit in the first month was $438. In two months, each of you had made a profit of $184. You always divide the profits equally. How much... more
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10/14/16

Factor the polynomial completely
Factor the polynomial completely   x^4 - 40^2 + 39      
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10/14/16

How many second had Anne been walking at the point when the two girls had walked he exact same distance?
Anne and Mary went for a walk. Anne started walking 1 minute earlier than Mary did. Anne walks at a speed of 6 feet per second. Mary walks at a speed of 8 feet per second. How many second had Anne... more
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10/14/16

how many grams of the 50% copper alloy should be used to make 1000 grams of a metal alloy that is 45%
A metalalloy is 25% copper. Another metal alloy is 50% copper. How many grams of 50% copper alloy should be used to make 1000 grams of a metal alloy that is 45% copper. 
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10/14/16

Mike is four years older than husband brother, Andrew. If five times Andrews age is equal to three times Mikes age, how old is Mike. Write only the number
Mike is four years older than husband brother, Andrew. If five times Andrews age is equal to three times Mikes age, how old is Mike. Write only the number
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10/14/16

Christopher Columbus
More often then not, when we teach students about the year of 1492 we are only focusing on Chirstopher Columbus. Most of the stuff we tell students is a lie, or is over exaggerated. What are 3... more
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10/14/16

question in description!!!
When you reverse the digits in a certain two-digit number, you decrease its value by 54. The sum of its digits is 10. Write a system of equations that models this scenario.  Using the table,... more
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10/14/16

Leon and Tyrone have 14 mice. Leon has 2 more mice than Tyrone. How many mice does each boy have?
3rd Grade Math question
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10/14/16

If -3 and 5 are the coordinates of two points on the real number line, the distance between these points is
Type as an integer or decimal 
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10/14/16

he needs a downpayment of 3,000 if he saves 340 each month about how many moths will it take him
he needs 3,000 dollars he saves 340 each month about how many months will it take him
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10/14/16

If a stack of $10 bills is worth $90 billion what is the height of the stack in kilometers? Assume each bill is 0.2 milimeters thick
would the answer be 18,000 km ? 
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10/14/16

How many years would it take a worker making $40.00 per hour to earn $ 8,000,000 assuming she works 240 8 hour days per year
would the answer be 104 years? 
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10/14/16

A car passes a landmark on a highway traveling at a constant rate of 45
A car passes a landmark on a highway traveling at a constant rate of 45 kilometers per hour. Two hours later, a second car passes the same landmark traveling in the same direction at 70 kilometers... more
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10/14/16

math help essay
A manufacturing company wants to keep their revenue positive. The equation for C(x) represents their cost, where (x) represents the time in months. The equation for P(x) represents their profit.... more
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10/14/16

MATH HELP EQUATIONS
Identify the system of equations which has no solution. A. -x = 3y + 1     X= 3y - 1   B. x - 2y = -6   2x = 4y - 12   C. x = 2y - 1    2x = 4y   D. 5x + 2y = 4    2x - 2y = 10
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10/14/16

find the new photocopier alone would take and the old photocopier would take.
a new photocopier works 2 times a fast as an old one. When the machines work together, it can produce all its manuals in 16 hours. Find the time it would take each machines, working alone to... more
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10/14/16

Last week, Aldo drove 113 miles. This week, he drove b miles. Using b , write an expression for the total number of miles he drove in the two weeks.
I just need the answer to this, please.
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10/14/16

find least number to be subtracted from 1886 to get a perfect square
 for .the given number ,find the leat number to be subtracted to get a perfect square. the number is 1886
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10/14/16

The perimeter of a rectangular garden is 98 feet the length of the garden is 4 feet more than twice the width what is the length of the garden
This is all the information you need
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10/14/16

a student has some 1 dollar bills and some 5 dollar bills in his wallet. he has 11 bills that are worth 31 dollars. how many of each type of bill does he have
a student has some 1 dollar bills and some 5 dollar bills in his wallet. he has 11 bills that are worth 31 dollars. how many of each type of bill does he have?
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10/14/16

the length of which can be represented by the expression (4x – 1) feet. The width of this space is 3 times the length.
I need to write an expression for the width and the area of the rectangle  
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10/14/16

Rie has 3000 dollars in her savings and needs to buy an 800 dollar laptop. Rie takes out 100 dollars for food every 2 weeks. Write an inequality to explain
Rie goes to San Diego State University. She has $3,000 in her savings account. She needs to buy a small laptop computer before the next semester. The laptop costs $800. Every 2 weeks she withdraws... more
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10/13/16

A crew of workers clears tress from 1/2 acre of land in 3 days. How long will it take the same crew to clear the entire plot of 2 3/4 acres?
some please help I don't have no clue how to start the problem
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