subject

Mathematics, 04.08.2019 00:40 abigailstolp

On average, seawater in the world oceans has a salinity of about 3.5%. how much seawater need to have evaporated to leave 100g salt?

ansver

Answers: 1

Show answers

Answers

ansver

Answer from: mommer2019

The answer is: " 2,857. 143 g seawater " .

Explanation:

(3.5 parts salt) /(100 parts water) = (100g salt)/ ("x" grams seawater) ;

Solve for "x" , {the amount of seawater, in "grams" (g), needed to have evaporated to leave 100 g salt}.

Cross multiply:

100* 100 = (3.5)x ;

10,000 = (3.5)x ;

↔ (3.5)x = 10,000 ;

Divide each side of the equation by "(3.5)" ; to isolate "x" on one side of the equation ; & to solve for "x" ;

→ (3.5)x / (3.5) = (10,000) / (3.5) ;

→ x = (10,000) / (3.5) ;

→ x = 2857.1428571428571429 ; → round to: 2,857. 143 ;

→ round to: " 2,857. 143 g seawater " .

ansver

Answer from: omgomglol

The amount of sea water need to have evaporated to leave 100g salt is $\boxed{2857.14{\text{ gram or 2}}{\text{.85714 kilogram}}}.$

Further Explanation:

The unit of the salinity is ${\text{gram}}/{\text{gram}}$

Given:

The salinity of the seawater is $3.5\%.$

The amount of salt is $100{\text{ gram}}.$

Explanation:

The given salinity of the seawater is $3.5\%.$

The salinity of the seawater is $3.5\%$ means that $3.5{\text{ gram}}$ of salt is present in the $100{\text{ gram}}.$

Consider the amount of seawater need to have evaporated to leave 100g salt be $x{\text{ gram}}.$

The amount seawater need to have evaporated to leave 100g salt can be calculated as follows,

$\begin{aligned}\frac{{3.5}}{{100}}&= \frac{{100}}{x}\\3.5 \times x &= 100 \times 100\\x&=\frac{{10000}}{{3.5}}\\x&= 2857.14{\text{ gram}}\\\end{aligned}$

The weight of the seawater in kilogram can be obtain as follows,

$\begin{aligned}x&=\frac{{2857.14}}{{1000}}\\&= 2.857{\text{kilogram}}\\\end{aligned}$

The amount of sea water need to have evaporated to leave 100g salt is $\boxed{2857.14{\text{ gram or 2}}{\text{.85714 kilogram}}}.$

Learn more:

Learn more about inverse of the functionhttps://link.Learn more about equation of circle link. Learn more about range and domain of the function link

Answer details:

Grade: Middle School

Subject: Mathematics

Chapter: Mensuration

Keywords: Average, seawater, the world, oceans, salinity, 3.5%, seawater need, evaporated, leave, 100 g, weight, gram, salt, percentage, amount, multiply,

ansver

Answer from: Quest

47.28 or 47.2857143

step-by-step explanation:

you just divide 331 by 7 and you get that answer. ( i think so tho)

ansver

Answer from: Quest

sorry i just need to anwers this to get points

step-by-step explanation:

Another question on Mathematics

question

Mathematics, 21.06.2019 16:30

Me because some of question i don’t understand

Answers: 1

question

Mathematics, 21.06.2019 21:00

Calculate the missing value. round the answer to on decimal place. start with 70, increase it by 21%, and end up with

Answers: 2

question

Mathematics, 21.06.2019 23:30

Maddie's rectangular kitchen has an area of 10 square yards and a length of 3 3/4 yards.how many yards wide is maddie's kitchen?

Answers: 1

question

Mathematics, 22.06.2019 00:00

The cost of a taxi ride includes an initial charge of $2.00. if a 5km ride cost $6.00 and a 10km ride cost $10.00, determine the cost of a 15km ride.

Answers: 1

You know the right answer?

On average, seawater in the world oceans has a salinity of about 3.5%. how much seawater need to hav...

Questions

question

History, 19.09.2019 23:10

Which group was most awarded at the war's end? a. native americans b. african americans c. white patriots d. white loyalist...

question

English, 19.09.2019 23:10

"marriage is a private affair". how does this passage reinforce the traditional social hierarchy?...

question

History, 19.09.2019 23:10

Why does jackson think his policy is kind and generous?...

question

Mathematics, 19.09.2019 23:10

Select the reason that supports the following statement.

question

English, 19.09.2019 23:10

What appeal does patrick henry speech primarily use here...

question

Physics, 19.09.2019 23:10

Need how far does a horse travel if it gallops at an average speed of 25.0km/hr for 30.0min?...

question

Computers and Technology, 19.09.2019 23:10

Use the drop-down menus to complete the statements about using column breaks in word 2016. columns and column breaks are features. column breaks can b...

question

Physics, 19.09.2019 23:10

If a car moves with constant velocity, does it also move with a constant speed?...

question

Mathematics, 19.09.2019 23:10

What is the solution to the following equation? 15+x=-2...

question

Mathematics, 19.09.2019 23:10

Damon does the following math problem: 4•7•1/4 4•1/4•7 1•7 7 damon has used all of the following number properties except: a. distributive property...

question

History, 19.09.2019 23:10

Alex receives a raise at work and continues to work the same number of hours each week. what is the most likely way that his demand for $3 t-shirts, w...

question

Biology, 19.09.2019 23:10

Rashida doesn't think that skepticism should play an important role in the scientific process. she says that skepticism interferes with scientific con...

question

Mathematics, 19.09.2019 23:10

Stefan purchases materials to make dog collars. stefan purchases 10 buckles in a pack and 12 straps in a pack. stefan doesn't want to have any supplie...

question

History, 19.09.2019 23:10

Which stage of the demographic transition model is low fertility and low mortality, indicating low growth? a. stage 1 b. stage 2 ...

question

English, 19.09.2019 23:10

When a college looks at your personal essay, it will consider all of the when a college looks at your personal essay, it will consider all of th...

question

Physics, 19.09.2019 23:10

Is frictional force and tension the same...

question

Business, 19.09.2019 23:10

Zola borrows $1000. to repay the amount, she makes 12 equal monthly payments of $95. compounding is done monthly. determine nominal interest rate. hin...

question

Business, 19.09.2019 23:10

What factors are encouraging financial institutions to offer overlapping financial services such as banking, investment banking, brokerage, etc.? i....

question

Biology, 19.09.2019 23:10

The theory of states that organisms that are better suited for their environment will survive and reproduce...

question

Chemistry, 19.09.2019 23:10

Acertain chemical reaction releases of heat energy per mole of reactant consumed. suppose some moles of the reactant are put into a calorimeter (a dev...

More questions: Mathematics Another questions