Total # Posts: 255
please can someone help me with this problem. I am doing substitution. 3x + 4y = 0 y = x you have to substituted the y for x Then the same other problem with different number. y = x -6x + 8y = -2
May 15, 2008
A grocery store has a gallon of milk for $2.30. They also have a 4 litter container of milk for $2.30. Which is the better buy and why? Please somebody help me with this question? So far I did Gallon 1 = x liter 3.79 4 4 = 3.79x cross out divide 3.79 3.79 x=1.055 gallon
April 20, 2008
Austin took a shower from 7:56 to 8:08 and used sixty gallons of water. Assuming the same rate of water usage, how much water would Austin have saved if he had taken a quick six-minute shower? help
April 18, 2008
In an ecosystem, some species become so adapted to each other that neither could survive without the other. Name one species and describe how it has become so adapted to organisms of another species that it could not survive without them. someone please help me with this ...
April 13, 2008
can someone please help me with this question. Give me an example of a jellyfish and a eagle body plan or internal structures. Then explain what is a body plans and internal structures for animal.
April 11, 2008
Identify two effects of tectonic plate movement. then explain how tectonic plate movement cause each of the effects you identified. Please someone help me with this question . The one effect I can think of is they form mountains and volcano but i don't know if it right or ...
April 8, 2008
A university student wants to perform an experiment using mice as test subjects. The procedure would require the mice to be injected with a specific bacterial infection and then treated with an antibiotic. Their response to the treatment would be observed and recorded. Provide...
April 4, 2008
If Earth is 149.6 million Kilometers from the sun, or 93 million miles away. suppose there was an imaginary road from earth to the sun. If you were in a car traveling 100 km an hour, it would take you 1,490,000 hours or just 170 years to reach the sun. If it took 170 years to ...
April 2, 2008
Scientist keep accurate records when they are conducting an investigation. Describe two reasons why it is important that scientists keep clear, thorough, accurate records. Please help me? thank you
April 1, 2008
The reason why I call the big square x^2, the rectangle x and the smaller square by just constant is because when you are using polynomial tiles the big square stands for x^2 of -X^2 while the rectangle stand for just x or -x and the small square stand for numbers.
March 17, 2008
You are working on a polynomials problem with algebra tiles. You have five big squares, seven rectangles, and eight small squares on your desk. your classmate leans over and borrows three big squares, one rectangle, and five small squares. Write an algebraic equation that ...
March 17, 2008
Dear Mr. Donahue, How are you? My name is Nana Turay and I am an 8th grade student. I am writing you this latter because I was wondering if we could have a school dance by the end of the school year. I know we good student are making life tough for you never less we still love...
March 16, 2008
Shannon put $ 7,000 in a 5 year CD that paid 8% interest per year. Malcolm put $6,000 in a 5 year CD that paid 10% interest. What was the balance of each person's account at the end of the 5 years? Who made more money and how much more did they make? (Use I= PRT Where I= ...
March 14, 2008
Mrs. Boyd went shopping at city center Mall. she parked her car in the parking garage. The cost for parking was $1.00 for the first hour and $0.75 for each additional 1/2 hour. Mrs. Boyd paid $4.75 for parking. Write an equation to find how long Mrs. Boyd was shopping. How ...
March 14, 2008
Double check please Write each of the following as a common fraction or mixed number. Write your answer in lowest term 28. 15.35 Answer: 1535 / 100 = 307/20 = 15 35/100 is 15 7/20 Complete each of the following statement, using the symbol < or > 5/16 _0.313 Answer >
February 20, 2008
check my answer? :)
ok, the question was "is the following ratios equivalent?" the ratios are 3:5 and 5:7. my answer is "no". is that right? you are correct. The way to know is divide the 3 by 5 and the 5 by 7 If the numbers are different, the ratios are not equal. Get it?
May 16, 2007