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Alex777 [14]
2 years ago
14

The table shows the proportional relationship between a​ hedgehog's weight loss and the number of days of hibernation. How much

weight does the hedgehog lose during 120 days of​ hibernation? Use pencil and paper. Explain how you know that the relationship between the​ hedgehog's weight loss and the number of days of hibernation is proportional.
Mathematics
1 answer:
pantera1 [17]2 years ago
5 0

Using the principle of proportional relationship, the amount of weight lost by hedgedog in 120 days is 3.6 oz

<u>Proportional</u><u> </u><u>relationships</u><u> </u><u>are</u><u> </u><u>defined</u><u> </u><u>thus</u><u> </u><u>:</u>

  • y = kx
  • <em>k</em><em> </em><em>=</em><em> </em><em>constant</em><em> </em><em>of proportionality</em><em> </em>

Taking a piar of points :

-0.24 = 8k

<em>Divide</em><em> </em><em>both</em><em> </em><em>sides</em><em> </em><em>by</em><em> </em><em>8</em>

(-0.24/8) = k

k = - 0.03

Hence, hedgedog loses weight at a rate of - 0.03 oz per day.

<u>The</u><u> </u><u>amount</u><u> </u><u>of</u><u> </u><u>weight</u><u> </u><u>lost</u><u> </u><u>in</u><u> </u><u>120</u><u> </u><u>days</u><u> </u><u>:</u>

The proportional relationship = y = - 0.03x

<em>Substitute</em><em> </em><em>x</em><em> </em><em>into</em><em> </em><em>the</em><em> </em><em>equation</em><em> </em>

y = -0.03(120)

y = - 3.6 oz

Therefore, the amount of weight lost in 120 days is 3.6 oz.

Learn more : brainly.com/question/25308816

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so the rephrased question is
when hazel was x years old, she was 25 years older than son gary who was y old at that time (equation is x is 25 more than y or x=25+y)
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subsitute
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x=48


Hazel was 48 and Gary was 23 in the year of 1995
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