Given that R is directly proportional to S and that R =141 when S = 5, find the constant of proportional and calculate the value of x when R =70?

Question

Given that R is directly proportional to S and that R =141 when S = 5, find the constant of proportional and calculate the value of x when R =70?

1 Answer

Impact of this question

1388 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-08-07T08:00:38

$S = \frac{350}{141}$ $S=350/141$

Explanation:

$Given R \propto S$ $"Given "RpropS$

$to convert to an equation multiply by k the constant$ $"to convert to an equation multiply by k the constant"$
$of variation$ $"of variation"$

$R = k S$ $R=kS$

$to find k use the given condition$ $"to find k use the given condition"$

$R = 141 when S = 5$ $R=141" when "S=5$

$R - k S \Rightarrow k = \frac{R}{S} = \frac{141}{5}$ $R-kSrArrk=R/S=141/5$

$equation is R = \frac{141 S}{5}$ $"equation is "R=(141S)/5$

$when R = 70 then$ $"when "R=70" then"$

$S = \frac{5 R}{141} = \frac{5 \times 70}{141} = \frac{350}{141}$ $S=(5R)/141=(5xx70)/141=350/141$

Science

Math

Humanities

... and beyond

Given that R is directly proportional to S and that R =141 when S = 5, find the constant of proportional and calculate the value of x when R =70?

1 Answer

Explanation:

Related questions

Impact of this question