11/01/18

Math 5th grade question
Mat uses 0.5 of a 0.9 ounce tube of red dye to color his fabric design. What fraction of red dye does Mat use?
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10/31/18

a boat is traveling in a river that is flowing downstream at a speed of 5 kilometers per hour.
a boat is traveling in a river that is flowing downstream at a speed of 5 kilometers per hour. the boat can travel 30 kilomteters upstream in the same time it would take to travel40 kilograms... more
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10/31/18

Slope-Intercept Form
m=-6,(1,3)m=2,(7,9)(2,9) and (4,7)(-4,-12) and (-12,-14)How would you write this in slope-intercept form when given the slope and a point and when you are given 2 points?I really don't understand... more
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10/28/18

Math - Sum of Fractions
Find the sum of the series 18/12+18/20+18/30+18/42+...+18/1260
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10/28/18

Write an equation for the best-fit line. Find the correlation coefficient and explain what it tells us about the relationship between experience and teacher salary.
This is the table Years Experience 1 5 10 15 20 Salary (thousands of dollars) 28 31 42 49 64
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10/26/18

A ball is thrown up from the top of a 64 foot high building. The ball is 96 feet of the ground after 1 second and 84 feet off the ground after 2.5 second.

A= how long after the ball is thrown will it reach its maximum height ?B= what is the maximum height the ball reaches?C= how long after the ball is thrown will it hit the ground?
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10/26/18

all sweaters are on sale for 20% off write an expression to represent the sale price of the sweater if it is originally x dollars
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10/24/18

common denominator
write the pair of fractions as a pair of fractions with a common denominator
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10/24/18

distributive property with fractions
solve the problem4x/5 - x = x/10 - 9/2
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10/18/18

Algebra 1 math question

After one year, you earned $1705.20 in interest on your nest egg you invested in two accounts. In the first account you invested $16800 at 2.5%. The second account has an interest rate of 6.3%. How... more
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10/18/18

PEMDAS adding parentheses to: 17-25-1+3x5=12
How do I add parentheses to this equation in order to make it equal? I am learning PEMDAS, but I dont understand how to do this problem. The equation is: 17-25-1+3*5=12
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10/17/18

Fraction of Free Time
Mura sends her free time on a typical Saturday. If she has 6 hours of free time, how many hours does she spend playing board game or going to park? Board game 1/10, Park 2/5, Piano 3/7, Reading... more
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10/15/18

Order of operations with fractions

A photography book has 40 two -sided pages of pictures, each of which is 1/24 inch thick, where each two -sides page is preceded by a protective 1/60 inch thick piece of paper, and each side of the... more
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10/15/18

Tina had 3 times as many ribbons as stickers. After giving away 43 ribbons, she had twice as many ribbons as stickers left. How many ribbons and stickers did she have altogether at first
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10/14/18

assume x and y are functions of . Evaluate dy/dt for 3xy-5x+2y^3=-18 with the conditions dx/dt=-4, x=2, y=-1
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10/12/18

You have 330 boxes each requiring a key. 15 keys can be bought for 300 gems a day. If your total boxes increase by 5 a day, how many gems will have to be spent, and how many days will have passed?
It's nothing serious. Just a question I came up with for a game I'm playing. I'm always getting these boxes in it, and I want to know how many gems would have to be spent for every box I have and... more
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10/12/18

What is the total number of students at the school?
Two-thirds of the students at a school are in choir, and one-half of the students are in orchestra. Every student at the school is in either choir or orchestra, and 24 of them are in both. What is... more
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10/10/18

Compound Interest Loan
How many years would it take for the debt of a compound interest loan to grow by 46% if the annual compound interest rate is 2.9%?Round your answer to the nearest tenth of a year. 
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10/10/18

Linear word problem.
Tanisha and Rebecca are signing up for new cellphone plans that only charge for the number of minutes and everything else is included in a monthly fee. Their plans are as follows: Tanisha’s plan:... more
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10/10/18

What’s a proportion that includes distribution with an answer of 5
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10/10/18

algebra 1 math help
A truck can be rented from Company A for ​$100 a day plus ​$0.20 per mile. Company B charges ​$40 a day plus ​$0.60 per mile to rent the same truck. Find the number of miles in a day at which the... more
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10/09/18

Uniform motion problems
Julia drove to the recycling plant and back. It took one hour longer to go there than it did to come back. The average speed of the trip there was 40 KM/h. The average speed on the way back was 50... more
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10/09/18

Compex Binomial with fraction

(2/3a - b^2) (2/3a - b^2)
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10/08/18

How long will it take the assistant?
A scientist and her assistant, working together, can complete an experiment in 6 hours. Working alone, the scientist could complete the experiment in 9 hours. How long would it take the assistant... more
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10/08/18

simplify expression
If x>0, simplify the expression below   \sqrt((x)/(1-(x-1)/(x)))
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