missing variables

[juspchy]

solve the missing variable

c=2nr
c=7.53, n=3.14

Your answer round to two decimal places

r=

round to the nearest hundreds

 

[arthur ohlsten]

c=2nr solve for r
divide both sides of = sign by 2n, so r is isolated
c/(2n) = r

let c=7.53
n=3.14
substitute these values

r=7.53/[2(3.14)] clear inner bracket
r=7.53/[6.28] divide
r= 1.199
r=1.20 answer

please check the math

Arthur

 

[juspchy]

thank you very much for your help!