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. Mang Ruben has only an 11-liter can and a 5- liter can. How can he measure out exactly 7 liters of water?
answered
Aug 22, 2018
in
Word Problem Answers
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5.5k
views
word problem
math problem
There were 424 participants in the math-a-thin. If there were 3 times as many girls as boys, how many girls participated?
answered
Aug 17, 2018
in
Word Problem Answers
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1.1k
views
word problems
4(2-x)+1=2x+2-5(1-4x)
answered
Jun 20, 2018
in
Algebra 2 Answers
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419
views
A motorboat takes 5 hours to travel 100 miles going upstream. The return trip takes 2 hours going downstream. What is the rate of the boat in still water and what is the rate of the current?
answered
May 6, 2018
in
Algebra 1 Answers
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3.2k
views
solving systems of equations
word problem
find d2y/dx2 in terms of x and y. x^2y^2-4x=8
answered
May 5, 2018
in
Calculus Answers
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4.3k
views
calculus
solve by complex ting the square 2x^2+3x-4=0
answered
May 5, 2018
in
Algebra 2 Answers
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909
views
How to prove (1+2sinx.cosx)/(1-2sin^2x)=(1+tanx)/(1-tan)
answered
May 3, 2018
in
Trigonometry Answers
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1.0k
views
proving trigonometric identities
A mudflow with a volume 0.02 cubic kilometers hits a small town. The mudflow covers the entire ten to a uniform thickness of 21 meters. What is the area of the town, in square meters?
answered
May 1, 2018
in
Word Problem Answers
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565
views
word problems
story problems
A concrete mix has the ratio 1 part cement, 2 parts water, and 3 parts sand. How much water can be used if 78 kg of sand and 21 kg of cement are available? How much concrete can be made?
answered
May 1, 2018
in
Algebra 2 Answers
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4.0k
views
word problems
math problem
please sol this as soon as possible. thank you for your email
What are the coordinates of the vertex of V(w)=−0.25(w−1)2+0.25 in a a
answered
May 1, 2018
in
Algebra 1 Answers
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1.1k
views
algebra
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