Viking Viking
  • 20-07-2024
  • Mathematics
High School

The mass of a dolphin is one-quarter the mass of a seal. If the seal is 126 kg heavier than the dolphin, what is the total mass of the dolphin and seal?

Answer :

erwinmogol erwinmogol
  • 21-09-2023

Answer:

210kg

Step-by-step explanation:

let d = dolphin's mass and s = seal's mass

d = s/4

s = 126 + d

s = 126 + s/4

s - s/4 = 126

3s = 504

s = 168

d = s/4

d = 168/4

d = 42

s + d = total mass

168 + 42 = 210

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