05/25/22

Need help with this math problem

If the cost of making 20 copies is $1.30, how much will 1 copy cost?
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05/21/22

In Fred’s class there are 7 more boys than girls. There are 33 students in all. How many girls are there is Fred’s class?
Please explain how to do this problem.In Fred’s class there are 7 more boys than girls. There are 33 students in all. How many girls are there is Fred’s class?
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05/17/22

How many moles of O2 gas are used to produced 0.75 moles of CO2 @ STP ?
C3H8+5O2=3CO2+H2O__________________________
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05/17/22

How many moles of oxygen of are needed to produced 5.3 moles of aluminum oxide ?
4AL+3O2=2AL2O2 _______________
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05/04/22

How do modern genetically enhancing techniques differ from previous decades?
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04/25/22

how many moles of iron oxide is required to produce 10 moles of carbon dioxide in the reaction 2Fe2 + c= Fe + 3CO2
how many moles of iron oxide is required to produce 10 moles of carbon dioxide in the reaction 2Fe2O3 + c= Fe + 3CO2
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04/23/22

Statistics Question
At Saint Algebra College, the 200 freshmen enrolled in introductory biology took a final exam on which their mean score was 72 and their standard deviation was 6. Below are the grades of... more
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04/17/22

How many grams of nitrogen are contained in a sample of C4H9N3O2 that also contains 9.42 x 1024 hydrogen atoms?

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04/17/22

How many moles of sulfur are contained in a sample of CuSO4 that also contains 3.50 x 1023 oxygen atoms?
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04/15/22

How many individual H atoms are in a sample of C2H4Cl2 that also contains 12.1 grams of chlorine?
I really need help with this question. I have no clue how to put it into a formula that I can solve to get the answer.
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04/02/22

What were the principal differences between mercantilism and the economic theories of Adam Smith?
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03/23/22

Calculus Question
Use the given information to find f '(9) f(x) = g(x)h(x)g(9) = 8 and g'(9) = 9h(9) = 4 and h'(9) = -6f'(9) =
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03/11/22

Olivia can clean the house in 3 hours, while Harry can clean the house in 8 hours. If they work together, how long, in hours, will it take Olivia and Harry to clean the house?
Round to two decimal places if necessary.
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03/09/22

How many moles of lithium nitrate will be needed to make 2.45 moles of Pb(NOg)4, assuming that you have an adequate amount of Pb(SO4)2 to do the reaction?
I'm completely lost on this one. Help!
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03/04/22

An account earns simple interest. $1500 at 4% for 5 years Find the interest earned.
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02/28/22

Easiest to walk up? 1/4, 3, 1/7, 1
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02/28/22

Which slope would be the steepest 1/4 3 1/7 1
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02/27/22

Please help! 2H2+ Oz--> 2H20 How many moles of oxygen are needed to react with 13 moles of hydrogen?
I just don’t understand these topics and I need more background information so I can figure everything out..
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02/25/22

± Conversions Involving Moles
The mole is defined as the number of atoms in exactly 12g  of carbon-12. The mole equals 6.022*10^23 items of whatever you are counting. This number is also called Avogadro's number, after Amadeo... more
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02/24/22

finding slope using coordinates

what would be the slope of the coordinates (0,5) and (1,23)
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02/24/22

finding slope using coordinates

what would be the slope of the coordinates (21,0) and (4,0)
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02/24/22

math question ALeks

A construction crew has just finished building a road. The road is 9 kilometers long. If the crew worked for 4 4/5 days, how many kilometers of road did they build each day? (Assume they built the... more
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02/23/22

The product of 7 and a​ number, increased by 61​, is equivalent to the product of 10 and the sum of the number and 4. Find the number
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02/22/22

Hawks Learning 7.4 for finite math
A bag of 11 marbles contains 7 marbles with red on them, 4 with blue on them, 5 with green on them, and 5 with red and green on them. What is the probability that a randomly chosen marble has... more
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02/10/22

Write a compound interest function to model $15,000 invested at a rate of 2.8% compounded continuously then find the balance after 2 years
Write a compound interest function to model $15,000 invested at a rate of 2.8% compounded continuously then find the balance after 2 years
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