01/16/15

Really tough question #9-10
Consider a chessboard, which has a total of 64 squares. One grain of wheat is placed on the 1st square, 2 grains on the 2nd square, 4 grains on the 3rd square, 8 grains on the 4th square, and so... more
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01/16/15

Word Problem Help
tito, working alone, can complete a task in 18 hours. Ronnie, working alone, can complete the same task in 12 hours. Ronnie begins working on the task alone. Four hours later, Tito joins Ronnie,... more
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01/16/15

Douglas invests money in two simple interest accounts. He invests three times as much in an account paying 12% as he does in an account paying 5%. If he earns $
Douglas invests money in two simple interest accounts. He invests three times as much in an account paying 12% as he does in an account paying 5%. If he earns $133.25 in interest in one year from... more
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01/16/15

The parallel sides of a trapezium are 28 cm and 16 cm and its area is 220 cm 2.
Tick the correct alternative and give resons:-The parallel sides of a trapezium are 28 cm and 16 cm and its area is 220 cm2. The distance between its parallel sides is a) 5 cm b) 10cmc) 15cmd) 20cm
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01/15/15

Write a coordinate proof.
Triangle ABC is a right isosceles triangle with hypotenuse AB.M is the midpoint of AB. Write a coordinate proof to prove that CM is perpendicular to AB. 
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01/15/15

24x^8-21x^5-3x^2
This question asks to factor the trinomial completely.  Im in pre calculus class in college, help would be greatly appreciated :)
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01/15/15

The difference of two positive numbers is 7 and the sum of their squares is 65. Find the numbers.
The difference of two positive numbers is 7 and the sum of their squares is 65. Find the numbers.
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01/15/15

A family that has just had their first child have $2000 to invest now for their child's college education.
Assume there is an 18 year time period before the child is ready for college and that interest is compounded quarterly.   If the parents expect the balance to grow to $20,000 and still assume and... more
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01/15/15

A family that has just had their first child have $2000 to invest now for their child's college education.
Assume there is an 18 year time period before the child is ready for college and that interest is compounded quarterly. If an 8% annual interest rate is expected, what will the balance be in 18... more
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01/15/15

Percentages
What is 2% of 30? Round to the nearest tenth of a percent
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01/15/15

A pharmacist prepares a mixture containing six grams of compound A and three grams of compound B. What part of the mixture is compound A?
A pharmacist prepares a mixture containing six grams of compound A and three grams of compound B. What part of the mixture is compound A? What part of the mixture is compound D?
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01/15/15

Your test scores for the semester are 87,84,and 85 . What will your average be if you make a 90 on the next test?
write an equation to represent the situation then solve
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01/15/15

I need help with Algebra 1
Donna signed a job contract that states that she will be paid an hourly rate of $9.95 for her first year of work and will receive a raise of $0.85/h every year after that. In what year will Donna’s... more
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01/15/15

find 3 consecutive integers whose sum is 966
Find 3 consecutive integers whose sum is 966
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01/15/15

Dora can run 3/5 m in 3/20 h How far can she run in 1 h?
answer must be in miles
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01/15/15

Ratio/Proportion
To make orange juice from concentrate powder, you need to mix 2.5 teaspoons of the concentrate in 16 ounces of water. How much concentrate powder do you need for 1 gallon of water?
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01/14/15

If 18 people shake hands with each other, how many handshakes you have?
If a group of 18 people shake hands with everyone in the group, how many hand shakes would it be?
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01/14/15

The perimeter of the rectangular playing field is 4 yards less than quadruple the width. What are the dimensions of the playing field?
The width is? the length is?     Both are in yards.
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01/14/15

how much flour is left in the bag?
Kamala had 5,026 grams of flour in a canister. She bought a 4,157 gram bag of flour. She poured some flour from the bag to the canister. As a result, the mass of the flour in the canister is now... more
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01/14/15

a cyclist travels at a rate of 20 km/hr for 30 minutes. the rider takes a half-hour lunch break and then proceeds to travel 30 km in the next 60 minutes. what i
a cyclist travels at a rate of 20 km/hr for 30 minutes. the rider takes a half-hour lunch break and then proceeds to travel 30 km in the next 60 minutes. what is the bicyclist's average speed over... more
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01/14/15

Word Problems, Working Backwards
A store sold their entire inventory of Tvs in one month. The first week they sold 1/2 of their inventory. The second week they sold 1/3 of the remaining TVs. The third week they sold 3/4 od what... more
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01/14/15

When more than one transformation is performed, what is the sequence called
I need help with geometry definitions. 
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01/14/15

If a circle with a circumference of 20 pi inches is circumscribed about a square, what is the length of a diagonal of a square?
The picture is a circle with 2 isosceles triangles in the middle.:/ 
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01/14/15

Find the leg of each isosceles right triangle when the hypotenuse is of the given measure. Given = 6 radical 2
Find the leg of each isosceles right triangle when the hypotenuse is of the given measure.Given = 6 radical 2
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01/14/15

The area of a rhombus is equal to the area of a triangle with base 24.8 cm and altitude 16.5 cm.
The area of a rhombus is equal to the area of a triangle with base 24.8 cm and altitude 16.5 cm. If one of the diagonals of the rhombus is 22cm, find the other diagonal.
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