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A scientist needs 10 liters of a 20% acid solution for an experiment, but she only has a 5% solution and a 40% solution. To the nearest tenth of a liter, about how many liters of the 5% and 40% solutions
asked
Sep 25, 2021
Mathematics
high-school
1
answer
1
vote
136k
views
The number y is equal to 5 more than 15 times .Which of the following equations could be used to find the value of y? y=5x+15 y=5x-15 y=15x+5 y=15x-5
asked
Aug 7, 2021
Mathematics
high-school
1
answer
0
votes
1.1k
views
Two trees of the same species have been growing in a forest for ten years. One of the trees is located on a valley floor. The other tree is located near the top of a windswept ridge. What would you expect
asked
Aug 6, 2021
Biology
high-school
1
answer
1
vote
134k
views
Property rights have been determined to be a major factor that helps countries sustain economic growth. Governments can change laws and policies in order to give individuals and firms more freedom. By
asked
Apr 26, 2021
Law
college
1
answer
5
votes
14.5k
views
140 - (16 7/8) x 7 = _______________ Thank you!
asked
Mar 28, 2021
Mathematics
high-school
1
answer
0
votes
161k
views
Mr. Malkemus replace 75% of the wooden boards on his deck if he replaced 63 wooden boards how many boards does his deck have in total
asked
Mar 18, 2021
Mathematics
middle-school
2
answers
2
votes
67.1k
views
For the second-order reaction below, the initial concentration of reactant A is 0.24 M. If the rate constant for the reaction is 1.5 x10–2 M–1s–1, what is the concentration of A after 265 seconds?2A -->
asked
Dec 3, 2020
Chemistry
college
2
answers
5
votes
234k
views
HELLLPPPPPPPPPPPPPPPPP
asked
Apr 7, 2020
Mathematics
middle-school
1
answer
5
votes
212k
views
PLZ HURRY IT'S URGENT!!!!!!!! Which is the prime factorization of 98? A. 2^2 • 7 B. 2 • 7 C. 2^2 • 7^2 D. 2 • 7^2
asked
Feb 11, 2020
Mathematics
middle-school
2
answers
4
votes
48.4k
views
Anti derivative of sin(x)
asked
Jan 22, 2020
Mathematics
middle-school
1
answer
0
votes
99.6k
views
Emily takes her friend Darren out to eat for his birthday. She pays a total of $45, which includes a 20% tip. There is no tax. Find the cost of the meals before the tip
asked
Aug 19, 2019
Mathematics
high-school
2
answers
2
votes
113k
views
Find the sum of the integers from -2007 through +2009
asked
Aug 18, 2019
Mathematics
high-school
1
answer
4
votes
155k
views
When two plates with continental crust converge, why are neither of them subducted
asked
Jun 4, 2019
Chemistry
high-school
1
answer
3
votes
211k
views
One day, cars may run on fuel cells. fuel cells obtain energy from the synthesis of gaseous water from hydrogen and oxygen. if all cars switched from burning fossil fuels to fuel cells, which might you
asked
Jan 6, 2019
Chemistry
high-school
2
answers
2
votes
26.2k
views
Why South Africa must include renewable energy in its energy mix 3 reasons
asked
Aug 22, 2018
Geography
high-school
1
answer
2
votes
62.7k
views
A client with suicidal thoughts is admitted to an adult inpatient behavioral health unit. what should the nurse do
asked
Jul 4, 2018
Biology
high-school
1
answer
2
votes
117k
views
Two families go to a zoo. The Smith family of two adults and three children pay £61. The Jones family of three adults and five children pay £96. Work out the cost of an adult ticket and the cost of a child
asked
Apr 9, 2018
Mathematics
high-school
1
answer
1
vote
51.2k
views
Martina walked 3/4of a mile in 3/5 of an hour. At this rate, how far can Martina walkin one hour?
asked
Jan 27, 2018
Mathematics
middle-school
2
answers
3
votes
186k
views
Is the biosphere more important then the geosphere?
asked
Jan 13, 2017
Geography
middle-school
2
answers
3
votes
123k
views
Draw a picture to show 9/7 improper fractions and mixed numbers
asked
Jan 10, 2015
Mathematics
middle-school
2
answers
3
votes
149k
views
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