1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
NeTakaya
3 years ago
5

An investor has an account with stock from two different companies. Last year, his stock in Company A was worth $7200 and his st

ock in Company B was worth $3510. The stock in Company A has decreased 24% since last year and the stock in Company B has decreased 20%. What was the total percentage decrease in the investor's stock account? Round your answer to the nearest tenth (if necessary)
Chemistry
1 answer:
djyliett [7]3 years ago
7 0

Answer:

22.7%

Explanation:

Given that last year stock for company A was $7200

The stock for company B last year was worth $3510

Stock in company A decreased by 24%

This means the new value of stock for company A became;

(100-24)/100 *$7200

76/100*$7200

0.76*7200 =$5472

Stock in company B decreased by 20%

This means the new value of stock for company B became;

(100-20)/100 *$3510

80/100*$3510

0.8*$3510

$2808

Original investors stock value was = $7200+$3510 =$10710

New investors stock value is = $5472+$2808=$8280

Decrease in value of stock = $10710-$8280 =$2430

percentage decrease in stock value = decrease in stock/original value of stock *100%

=2430/10710 *100 =22.689

=22.7%

You might be interested in
Calculate the mass of water produced when 42 g of propane, c3h8, is burned with 115 g of oxygen
gavmur [86]
The balanced combustion reaction of propane, C₃H₈, is

C₃H₈ + 5 O₂ → 3 CO₂ + 4 H₂O

Molar mass of propane: 44 g/mol
Moles of propane = 42 g * (1 mol/44g) = 0.9545 mol propane

Molar mass of oxygen: 32 g/mol
Moles of oxygen = 115 g * (1 mol/32 g) = 3.594 mol oxygen

Moles of oxygen needed to completely react propane:
0.9545 mol propane * (5 mol O₂/1 mol propane) = 4.7725 mol oxygen

Since the available oxygen is only 3.594 moles and propane needs 4.7725 moles, that means oxygen is our limiting reactant. We base the amount of water produced here.

Molar mass of water: 18 g/mol
Mass of water produced = 3.594 mol O₂ * (4 mol H₂O/5 mol O₂) * (18 g/mol)
Mass of water produced = 258.768 grams
6 0
3 years ago
In an experiment, hydrochloric acid reacted with different volumes of sodium thiosulfate in water. A yellow precipitate was form
iris [78.8K]

Answer:

I think that the trend that would be seen in the time column of the data table would be that the number of seconds would increase. I know this because for each flask, the concentration of sodium thiosulfate decreases, since less of it is being mixed with more water. Also, when the concentration of a substance decreases, then the reaction rate also decreases, as there will be fewer collisions with sulfuric acid if there are fewer moles of sodium thiosulfate. When there are fewer collisions in a reaction, the reaction itself will take longer, and so when the sodium thiosulfate is diluted, the reaction takes more time.

Explanation:

<em>I verify this is correct. </em>

6 0
2 years ago
A distance of one centimeter is the same as ?
rodikova [14]
C because its meters right
4 0
3 years ago
Facts about diane abbott
Elenna [48]
Diane Julie Abbott is a British Labour Part Politician. She has been the Member of Parliament for Stoke Newington since 1987. She became the first black woman to be elected to the House of Commons. Born in September 27th 1953 Married to David Thompson. Education: Newnham College, University of Cambridge
7 0
3 years ago
Atomic mass represents the number of:<br> rotons<br> neutrons<br> electrons<br> protons and neutrons
Pavlova-9 [17]

Answer:

Proton Atomic Mass = 1

Neutron = 1

Electron = 0.0005

8 0
3 years ago
Other questions:
  • A proton is also known as this ion?
    7·1 answer
  • Who were the Native Americans ?
    15·2 answers
  • If you have 66 pencils, how many dozen do you have
    14·1 answer
  • Knowing that all three-sided figures are triangles is an example of:
    13·2 answers
  • 2) Give the number of lone pairs around the central atom and the molecular geometry of IF5. A) 0 lone pairs, square pyramidal D)
    9·1 answer
  • Difference between Atom and Molecule <br> In three points
    11·2 answers
  • What is kinetic energy related to?
    10·2 answers
  • 100 POINTS AND BRAINLIEST
    6·2 answers
  • Which ones react with HCL?
    14·1 answer
  • PLEASE HELP ME. REAL ANSWERS ONLY PLZ
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!