01/22/15

X^2+7x+10=
x^2+7x+10=
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01/22/15

how many different ways can five people be lined up?
how many different ways can five people be lined up?
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01/22/15

ONE MORE AND I SHOULD BE DONE
A small publishing company is planning to publish a new book. The production costs will include one-time fixed costs (such as editing) and variable costs (such as printing). There are two... more
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01/22/15

A book has 8 chapters. You read 3/8 of the book in a week. How much do you have left to read?
A book has 8 chapters.  You read 3/8 of the book in a week.  How much do you have left to read?  Use an equation to find out how much you have left to read.
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01/21/15

Question is a word problem so its below
cake batter frozen yogurt costs $0.60/oz and chocolate frozen yogurt costs $0.40/oz. if you want to buy 6 oz of frozen yogurt for an average of $0.45/oz, how many of each flavor should you get
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01/21/15

How much of the 30% solution should the chemist use?
A chemist is mixing a 30% salt solution with a 20% salt solution to make 40 L of a new solution that will contain 25% salt. How much of the 30% solution should the chemist use?
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01/21/15

How much was invested in the 8% account?
A total investment of $9,600is made into two savings accounts. One account yields 8% simple interest and the other 9% simple interest. He earns a total of $827.00interest for the year. How much was... more
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01/21/15

The illumination provided by a car's headlight varies inversely as the square of the distance from the headlight
The illumination provided by a car's headlight varies inversely as the square of the distance from the headlight. A car's headlight produces an illumination of 3.75 (15/4) Foot-candles at a... more
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01/21/15

bill has 35 dollars saved and earns 8 a week susie has 90 saved and earns 5 a week on what week will they have the same amount of money
 i need to know when they will have the same amount of money (on what week)
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01/21/15

Step By step! # 15
How much money will be in an account at the end of 5 years if $2,000 is deposited at 6% intrest compounded 2 times per year? Assume no deposits or withdrawls are made
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01/21/15

Step By Step!!
Lilly likes to collect records. Last year she had 10 records in her collection. Now she has 11 records. What is the percent increase of her collection
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01/21/15

Step by Step!
Rhonda deposits $500 into an account that earns 5% intrest compound annually. Susan deposits the same ammount into an account that earns 5% simple intrest. Compare the account balences after 2... more
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01/20/15

On an architect's drawing for an office building, 0.25 inches represents 3.7 feet...
... If the length of a wall on the architect's drawing is 23.3 inches, what is the length of the wall to one decimal place?
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01/20/15

hypotenuse is 8 inches longer that the shorter leg. The longer leg is 4 inches longer than the shorter leg. Find the length of the shorter leg.
I can't understand how to put the words into an equation to solve it.
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01/20/15

How many milliliters of 35% acid solution need to be added to60mL of 65% acid solution to get a solution that is45% acid?
How many milliliters of 35% acid solution need to be added to60mL of 65% acid solution to get a solution that is45% acid?
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01/20/15

[1/(secx+1)]-[1/(secx-1)] =-2cot2x
Could someone please show me how to do a step by step proof of this problem with each method listed out please?
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01/20/15

Nick and Matt are he partners in a local health food store. They needed $73,000 to start the business. They invested in the ratio 3:7, Nick to Matt.
How much money did they each invest ?
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01/20/15

What is the mean and median of the numbers 10 7 9 15 14 12 11 9
When I find the mean and median of the numbers 10 7 9 15 14 12 11 9, I get, MEAN = 10.875 and MEDIAN = 10.5The answers that they had put were MEAN = 17 and MEDIAN = 11.5 Am I missing a rule or are... more
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01/20/15

How much did he invest at each rate?
Zach invested at a term deposit that paid 4% interest per annum and in a municipal bond that paid 6% interested per annum. If he invested a total of $13,000 and earned $700 interested in a year,... more
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01/19/15

wavelength in water, steel, and brass
When a sound wave is transferred from one medium to another, its frequency does not change. If the wavelength of a disturbance is 17cm in air, find its wavelength in water, steel, and brass if the... more
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01/19/15

wavelength of the disturbance
A set of circular ripples is produced on the surface of a pond by throwing a stone into water. At a certain instant, the first crest is 4 m from the point where the stone hit the water, and the... more
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01/19/15

equation solve and check
terri lost four pounds over the summer. This is four more than half the weight she wants to lose by December. How much does Terri want to lose?         Twelve seventh graders entered the... more
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01/19/15

Algebra 1a
What is the solution of the system?  y=10x-2 y=-7x+3    A. (5/17,16/17) B. (4/15,16/19) C.(-5/17,16/19) D.(3/17,5/17)
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01/19/15

5 students did long jump at track and field. 4 jumped 114cm,107cm,102cm and 98cm. the mean for all 5 was 101.8 . what did the fifth girl jump?
Rebecca participated in high jump for track and field against 4 other students. The heights the other students were able to jump were, 102cm, 98cm, 114cm, 107cm. The mean height of all the jumpers... more
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01/19/15

need help to answer algebraic word problem for 7th grader
please help answer the questions   Mr Yangs ISP charges $10 per month for 8 hours. Plus $.50 per additional hour. If he spent 18.50 on his monthly bill how many additional hours did he spend online? more
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