Chemistry High School

the sum of two numbers is 54 one exceed the other by 14 find the number​

Answers

Answer 1

Answer:

x=34

y=20

Explanation:

let the first number be 'x'

let the second number be 'y'

Equation 1:-

x + y = 54

Equation 2:-

x = y + 14  (Since one exceeds the other by 14)

Substituting Equation 2 in Equation 1:-

(y + 14) + y = 54

=> y + 14 + y = 54

=> 2y + 14 = 54

=> 2y = 54 - 14

=> 2y = 40

=> y = 40/2

=> y = 20

Now in Equation 1:-

x + y = 54

Substituting y=20,

x + 20 = 54

x = 54 - 20

x = 34

Related Questions

Read the temperatures shown to the nearest 0.5°C.
I’ll mark you as brainlister

Answers

Answer:

The temperature to the nearest 0.5°C is 98.5°C

2002040_MIJ COMP SCI 1_SEM 1 CR_PY
The three main types of scientific investigations are descriptive, comparative, and experimental. Which components
are included in all three types of investigations?
a scientific question
an independent variable
a dependent variable
a procedure
a control group
a conclusion

Answers

Answer:

a scientific question

Procedure

Conclusion.

Explanation:

Scientific investigation is usually carried out to explain and give answers to natural phenomenon. Now, this scientific investigation is performed through the three main types as described in the question.

With that being said, the most common parts of all types of investigation are :

1. Scientific question: In this stage, questions are usually asked on the basis of observation made which could be answered.

2. Procedure: In this stage, the dimension of the steps are followed to answer and test the scientific question.

3. Conclusion: This is the primary aim that we check when done with our sample values

if slowing down is the response to seeing a blinking yellow light is it conditioned or unconditioned?

Answers

Answer:

Conditioned

Explanation:

Naturally, you do not slow down when you see a yellow light. That response is learned, therefore it is a conditioned response.

1. When a solution of an acid contains larger amount of acid, it is said to be

Answers

Answer:

highly concentrated solution of acid

How many O2 molecules react with 47 CH4 molecules according to the preceding equation CH4 + O2 → CO2 + H2O

Answers

I think 93.71 mol.
You need to use stochio

Which of the following make up an atom of gold? Select all that apply.

a
photons
b
electrons
c
neutrinos
d
protons
e
neutrons

Answers

Answer:

b, d, e

Explanation:

An atom is made up of electrons, protons and neutrons. Gold is an atom thus has the above particles.

I am doing a lab and I am not sure how to calculate the concentration of the chemical formulas used in the lab. Would I need to use the 15ml and add it to the 10 ml of the first solution to find the concentration. Thank you

Answers

Answer:

C = m/V

Explanation:

In order to calculate the concentration of a mixture you would need to use the formula for concentration, which is the following...

C = m/V

In this formula C is the concentration, m is the mass of the compound that is being added and mixed into the solution, and V is the total volume of the mixture. The mass of m is in terms of number of moles. Therefore, we would need more information in order to calculate the actual concentration of the mixture that you are trying to find in this scenario. Using the formula above should be enough using the values that you have in your actual workbook.

What are the steps for writing the formula for an ionic compound? Naming an ionic compound?

Answers

Answer:

i hope it will help you

Explanation:

To find the formula of an ionic compound, first identify the cation and write down its symbol and charge. Then, identify the anion and write down its symbol and charge. Finally, combine the two ions to form an electrically neutral compound.

When naming acids such as HCl, HBr, and HI, the prefix "hydro-" is added and the "ine" of the element is replaced with which of the following suffixes before the word "acid" is added?
Select one:
a. "-ic"
b. "-ate"
c. "-ite"
d. "-ide"

Answers

Answer:

a. "-ic"

Explanation:

The correct answer is a. "-ic".

For example:

For HCl, the name is Hydrochloric acid. As you can see, the suffix "-ine" of the element (originally chlorine) is changed to "-ic".

Following the same logic, the name for HBr is Hydrobromic acid; and the name for HI is Hydroiodic acid.

Other Questions
Select the correct answer from each drop-down menu. Study the pie chart, and then complete the passage. Causes of deforestation in the Amazon, 200-2005. The pie chart indicates that deforestation in the Amazon rainforest is ___(a result of industrial manufacturing. Mostly driven by food production. Unrelated to human activity). The loss of large carbon-storing trees combined with the presence of ___(oxygen. Methane. Sulfur)-producing cattle is likely to intensify the greenhouse gases in the Amazon. Explain why it is not advisable for two sickle cell carriers to marry. The growth of Ghana, Mali, and Songhai was based ona. their exportation of cotton, indigo, and sugarb. their control of the Trans-Atlantic slave tradec. their conversion to Islamd. their control of trade routes in Saharan Africa Briefly explain what is meant by Global PR . Imagine the following scenario. A bacteriophage taken for the treatment of cholera infects a cholera-causing bacterium and temporarily enters the lysogenic stage. When the virus re-enters the lytic cycle, it includes some pieces of the bacterial DNA in its own genome. Specifcally, this DNA encodes information for making the cholera toxin. Imagine some of the possible consequences of this scenario. What will happen to the next bacteria that the virus infects Find the starting pressure of CCl4 at this temperature that produces a total pressure of 1.1 atm at equilibrium. Express the pressure in atmospheres to three significant figures. Which of the following statements about the law of conservation of matter is correct?O Matter cannot be created, destroyed or transformedO Matter can be created and destroyed, while still being transformedO Matter cannot be created or destroyed, it can only be transformed Find the equation of the line through the points (6, -9) and (-2, -1). The has the final say on whether a law or action violates the constitution Micheal is selling lemonade.He sold 6 large lemonades at $3 each and 5 small lemonades at $2 each. How much money did he earn ? Write two adaptations of a plant leaf for the above mentioned function. Select the correct text in the passage.Fate versus free will is a dominant theme of Sophocless Antigone. Although Antigone makes a conscious choice to risk her life by burying her brother, Sophocles hints that her life is the result of a predetermined destiny shaped by her familys past. Which line in this excerpt from Antigone reflects Antigones helplessness with regard to her fate and her familys past?ANTIGONE:Alack, alack! Ye mock me. Is it meetThus to insult me living, to my face?Cease, by our country's altars I entreat,Ye lordly rulers of a lordly race.O fount of Dirce, wood-embowered plainWhere Theban chariots to victory speed,Mark ye the cruel laws that now have wrought my bane,The friends who show no pity in my need!O monstrous doom,Within a rock-built prison sepulchered,To fade and wither in a living tomb,And alien midst the living and the dead.CHORUS:In thy boldness over-rashMadly thou thy foot didst dash'Gainst high Justice' altar stair.Thou a father's guilt dost bear. What should be done first to evaluate the expression?3 + (5 - 3)2 4 According to Professor Takaki, race in American society has been a social construction that historically:A. corrected itself through time. B.played a small part in American history. C. set apart racial minorities from European i. immigrant groups. D. None of the answers provided are correct. Air is compressed in a well insulated compressor from 95 kPa and 27 C to 600 kPa and 277 C. Use the air tables; assume negligible changes in kinetic and potential energy. Find the isentropic efficiency of the compressor. Find the exit temperature of the air if the compressor was reversible. 12. The following are some of the internet unwritten rules that will make your respondents to understand easier your survey questionnaire, EXCEPTA. Use an underlined word to link information to another site. B. The content should be arranged from top to bottom.C. The header and the footer of an online questionnaire page are the right places to place additional items as logos, support links or navigation buttons.D. In response alternatives, use radio buttons to indicate those options are mutually exclusive, and use checkboxes to indicate that it is possible to check more than one option. If AABC IS REFLECTED across the y axis what are the coordinates of A Curtis is tracking the amount of calories he is consuming each day, along with his amount of exercise. He also takes his basal metabolic rate into consideration, which is 1,800 calories per day. At the end of the first day, he has consumed 2,600 calories in food and beverages and burned 240 calories on a five-mile bike ride, giving him an excess of 560 calories in vs. out. What will most likely be the outcome if Curtis continues this pattern for multiple weeks?A. He will gain weight.B. He will lose weight.C. His weight will stay the same.D. His weight will shift up and down. Typical cash outflows of a project include all of the following except: A. the original investment B. depreciation expense. C. additional inventory required D. repairs and maintenance expenses E. all of the above are typical cash outflows. How did the Enclosure Acts help to fuel the Industrial Revolution ?