Respuesta :

meaganblatcher

Answer:

Martina has 18,000

Step-by-step explanation:

  1. Set up the 4/5 the amount Tamara has as a proportion. 4/5 = x/20000
  2. Then cross multiply
  3. 4 * 20,000 = 80,000
  4. 80,000 = 5x
  5. Divide and get 16,000 (This is 4/5 of what Tamara has)
  6. Set up what Martina has as a proportion. 8/9 = 16,000/x
  7. Cross multiply 8x = 16,000 * 9
  8. 8x = 144,000
  9. Divide by 8
  10. 18,000 :)