math

posted by .

problem is solve for the unknown
2/3 over 10 = 1.8 over r
dont even know where to start to solve this please help

cross-muliply
2/3 r = 18

multiply both sides by 3/2



thank you

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    x/2=3y/5 can you show me how you got the answer please y=3/4x-2 I don't think it is correct. Starting over To solve for y first multiply both sides by 5 (5)x/2=3y/5 (5) Cancel 5 on right side to get 5x/2=3y Now multiply both sides …
  2. Algebra

    2x + 1/2 = x/2 + 1/3 Subtract the x/2 from both sides to get 2x + 1/2 - x/2 = + 1/3 Now subtract 1/2 from both sides to get 2x + - x/2 = 1/3 - 1/2 Then combine terms on both sides and solve for x. Subtract the x/2 from both sides to …
  3. maths

    Solve the equation using the multiplication principle. -35 = 7k Solve the equation. clear fraction and decimal first. 2.(y-7)- (y+4)) = 6y 3. -5b - 8 = -5 - 2b - 1b Problem one: multiply both sides of the equation by 1/7 Problem two: …
  4. Help Please

    Help to solve this 1/2 (3g-2) = g/6 nevermind I was missing a bracket in the solution. multiply both sides by 2 This gives 3g-2=g/3 now cross multiply to get 9g-6=g now add a -g to both sides and +6 to both sides. g=3/4
  5. Math, rational inequalities

    Please can someone help me solve this problem?
  6. MATH PLEASE CHECK IT!!2

    m-2/m-5*m+5/m-2=-1 If your problem is this: (m - 2)/(m - 5) * (m + 5)/(m - 2) = -1 (m - 2) cancels out in both the numerator and denominator on the left-hand side since you are multiplying. That leaves us with this: (m + 5)/(m - 5) …
  7. please help math

    x/3-2/3=1/x *Solve the rational below. I really need help. multiply both sides by x. x^2/3 -2x/3 = 1 multiply both sides by 3 subtract three from each side x^2 -2x -3=0 (x-3)(x+1)=0 Then either of the factors can be zero, or x=3 or …
  8. Algebra 2

    would some one please check these for me 1. divide x^2-36y^2 over 5x^2+30y divide (x^2-6xy) A: x+6y over (5x)(x^2+6y) 2. Add. Express your answer in simplest form. 2x 0ver x^2+15x+54 + 4over x+6 A: 6 over x+9 3. solve: (9 over x-5) …
  9. math

    Multiply and simplify 2/3*13 The answer is 22. Right?
  10. math

    2/3 over 10 equals 1.8/r solve for r. (2/3)/10 = 1.8r. First, invert and multiply the denominator; i.e.,10. (2/3)*(1/10) = 1.8/r 2/30 = 1.8/r Now cross multiply. 2r = 30*1.8 2r = 54 Now divide both sides by 2 2r/2 = 54/2 r = 27 check …

More Similar Questions