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
liraira [26]
3 years ago
15

There are four hundred participants in the local Thanksgiving 5K race. If 51% of the participants are female, what is the ratio

of female participants to male participants?​
ITS FOR MATH. I ACCIDENTALLY CLICKED CHEMISTRY
Chemistry
1 answer:
Paha777 [63]3 years ago
5 0

Answer:

51:49 is the ratio of female participants to male participants.

Explanation:

Percentage of females in the race = 51 %

Percentage of males in the race = 100% - 51 % = 49%

Total participants in race = 400

Number of women participants = 51% of 400=\frac{51}{100}\times 400=204

Number of men participants  = 49% of 400=\frac{49}{100}\times 400=196

Ratio of female participants to male participants :

\frac{204}{196}=\frac{51}{49}=51:49

You might be interested in
1) For the following reaction, 8.44 grams of carbon (graphite) are allowed to react with 9.63 grams of oxygen gas.C(graphite)(s)
Yuki888 [10]

Answer:

The answers to the question are

(a) 13.24 g

(b) (O₂)

(c) 4.8252 g

(2) 0.662 M/L

Explanation:

(a) To solve the question we write the equation as follows

C + O₂ → CO₂

That is one mole of graphite reacts with one mole of oxygen to form one mole of carbon dioxide

number of moles of graphite = 8.44/12 = 0.703 moles

number of moles of oxygen = 9.63/32 = 0.3009

However since one mole of graphite reacts with one mole of oxygen to form one mole of carbon dioxide, therefore, 0.3009 moles of oxygen will react with 0.3009 moles of  carbon to fore 0.3009 moles of  CO₂

The maximum mass of carbon dioxide that  can be formed = mass = moles × molar mass

= 0.3009×44 = 13.24 g

(b) The formula for  the limiting reagent (O₂)

Finding the limting reagent is by checking the mole balance of the reactants available to the moles specified in th stoichiometry of the reaction and selecting the reagent with the list number of moles

(c) The mass of excess reagent = 0.703 moles - 0.3009 moles = 0.4021 moles

mass of excess reagent = 0.4021 × 12 = 4.8252 g

(2) The molarity is given by number of moles per liter of solution, therefore

molar mass of mgnesium iodide = 278.1139 g/mol, number of moles of magnesium iodide in 23 g = 23g/ 278.1139 g/mol= 8.3 × 10⁻² M

Therefore the moles in 125 mL = (8.3 × 10⁻² M)/(125 mL) = (8.3 × 10⁻² M)/(0.125 L) = 0.662 M/L

3 0
3 years ago
How do oceanographers define salinity?
Studentka2010 [4]

The oceanographers define salinity by the number of grams of salt per kilogram of water.  

Salinity is illustrated as how much salt is present in the given amount of water. It is dependent upon how much salt is found in the ocean in the specific regions. If there is a sunny environment, it may evaporate an ample amount of water, and leave behind a lot of salt, thus, the water has more salinity.  

The salinity of the ocean is usually measured in Practical Salinity Unit (PSU), it is a unit based on the characteristics of seawater conductivity.  

3 0
3 years ago
Read 2 more answers
2 Points
djyliett [7]
A. Camouflage Fur is the correct answer.
7 0
3 years ago
The atomic theory has been revised many times over the last several hundred years. John Dalton described the atom as a solid sph
frez [133]
<span>As new discoveries are made, existing theories are revised or replaced.</span>
6 0
3 years ago
Read 2 more answers
Why Ca(OH)2 is a base?
Ray Of Light [21]
Calcium Hydroxide (Ca(OH)2) or slaked lime is a base because in aqueous solution of slaked lime there are hydroxide ions available due to the dissociation of electrolyte (Ca(OH)2).
7 0
3 years ago
Other questions:
  • A chemist combines ethane and chlorine with the goal of producing chloroethane which other product could be reasonably expected
    5·2 answers
  • What is the name for CrN:
    5·2 answers
  • What is the relationship between atomic number and an the atom's identity?
    6·1 answer
  • A student designs an experiment where he takes a small wood car with 1.0 inch diameter wheels and rolls it down a ramp. The stud
    8·2 answers
  • 3. Write a hypothesis that explains your inference about the acidity of the paper. How might you test your hypothesis by extendi
    15·1 answer
  • Does corrosion occur when iron nail is in salt water
    7·1 answer
  • PLEASE HELP<br> Thanks to Einstein's equation E = mc² we now know that energy is equivalent to what?
    11·2 answers
  • Which of these plants make the enviroment pleasant<br><br> a.sandalwood b.basil c.brahmi
    14·1 answer
  • Help me plsss yall??????
    6·2 answers
  • Sulfur burns in the air to form 33.6L of sulfur dioxide. (S = 32, O =16, 64g of sulfur dioxide has 22.4L, 32g of oxygen has 22.4
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!