annsgray
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please help me with maths !!!

A fish was at the river-bed at a certain time. After 5 minutes, the water level of the river rose
up 2.4 cm and the water level of the river rose up again 3½cm after 4 minutes. The moment, the fish was at 14.6 cm from the river-bed and 162 cm below water level of the river.

Calculate the original height, in cm, of the water level of the river.​

Respuesta :

mhanifa

Answer:

  • 170.7 cm

Step-by-step explanation:

Let the original water level is x.

Use below equation to find its value:

  • x + 2.4 + 3 1/2 = 162 + 14.6
  • x + 2.4 + 3.5 = 176.6
  • x + 5.9 = 176.6
  • x = 176.6 - 5.9
  • x = 170.7 cm

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