Question
Solve the equation
r=350
Alternative Form
r=16.6˙
Evaluate
r−931=731
Covert the mixed number to an improper fraction
More Steps

Evaluate
931
Multiply the denominator of the fraction by the whole number and add the numerator of the fraction
39×3+1
Multiply the terms
327+1
Add the terms
328
r−328=731
Covert the mixed number to an improper fraction
More Steps

Evaluate
731
Multiply the denominator of the fraction by the whole number and add the numerator of the fraction
37×3+1
Multiply the terms
321+1
Add the terms
322
r−328=322
Move the constant to the right-hand side and change its sign
r=322+328
Solution
More Steps

Evaluate
322+328
Write all numerators above the common denominator
322+28
Add the numbers
350
r=350
Alternative Form
r=16.6˙
Show Solution

Rewrite the equation
9x2+9y2=2500
Evaluate
r−931=731
Covert the mixed number to an improper fraction
More Steps

Evaluate
r−931
Covert the mixed number to an improper fraction
More Steps

Evaluate
931
Multiply the denominator of the fraction by the whole number and add the numerator of the fraction
39×3+1
Multiply the terms
327+1
Add the terms
328
r−328
r−328=731
Evaluate
More Steps

Evaluate
731
Multiply the denominator of the fraction by the whole number and add the numerator of the fraction
37×3+1
Multiply the terms
321+1
Add the terms
322
r−328=322
Multiply both sides of the equation by LCD
(r−328)×3=322×3
Simplify the equation
More Steps

Evaluate
(r−328)×3
Apply the distributive property
r×3−328×3
Simplify
r×3−28
Use the commutative property to reorder the terms
3r−28
3r−28=322×3
Simplify the equation
3r−28=22
Rewrite the expression
3r=28+22
Simplify the expression
3r=50
Square both sides of the equation
(3r)2=502
Evaluate
9r2=502
To covert the equation to rectangular coordinates using conversion formulas,substitute x2+y2 for r2
9(x2+y2)=502
Evaluate the power
9(x2+y2)=2500
Solution
9x2+9y2=2500
Show Solution
