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2.) A zoo is raising a young elephant. They put him on a special high-protein diet to gain weight rapidly. He gains 6 kilograms per month. After 8 months, he weighed 138 kilograms. Write an equation that will track the elephant’s weight. How much will the elephant weigh-in 20
months?

Sagot :

Answer:

  • The weight after 20 months is 210 kilos.

Step-by-step explanation:

  • 1 month = 6 kilos
  • => 8 months = 6 x 8 = 48 kilos
  • => x + 48 = 138
  • => x = 90

This means that the starting point is 90 kilos.

  • => 1 month = 6 kilos
  • => 20 months = 6 x 20 kilos
  • => 20 months = 120 kilos
  • => 90 + 120 = weight in 20 months
  • => 210 kilos = weight in 20 months

Hence, the weight after 20 months is 210 kilos.

Hoped this helped.

[tex]BrainiacUser1357[/tex]

mhanifa

Answer:

  • y = 6x + 90
  • 210 kg

Step-by-step explanation:

This is a linear relationship:

  • y = mx + b

We have:

  • m = 6 and a point (8, 138)

Work out the y-intercept by using the above information:

  • 138 = 6*8 + b
  • b = 138 - 48
  • b = 90

The equation is:

  • y = 6x + 90

Find the value of y when x = 20:

  • y = 6*20 + 90 = 120 + 90 = 210 kg
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