##### how do you sove this question for a and b

 Algebra Tutor: None Selected Time limit: 1 Day

A newly hatched channel catfish typically weighs about 0.3 grams. During the first 6 weeks  of life,  its growth is approximately 10% each day.

a. Write a model for the catfish's weights during the 1st six weeks?

b. What is the weight of the catfish at the end of 6 weeks?

Apr 19th, 2015

Newborn = 0.3grams (3/10 of a gram). 10% of 0.3 each day growth = (0.10 * 0.3 = 0.03 grams per day) n = number of days

a. 0.3 gram (starting) + 1 day (0.03) = 0.33 gram after day 1

0.33 gram (start day 2) + (0.10)(0.33) = 0.33 + 0.033 = 0.363 grams after 2nd day.

nth day (n-1 value) + (0.10) (n-1 value) is the model

b. 6th week = 7 days * 6 weeks = 42 days

0.3 gram (starting) + (0.10)(42) = 0.3+ 4.2 = 4.5 grams.

Apr 19th, 2015

whats the answer with out all of the work shown only answer needed

Apr 19th, 2015

If I worked it out right, after 6 weeks (42 days), the channel catfish should weigh 4.5 grams.  Part a was the model for the catfish's weight. Let me do it be hand to make sure the 4.5 grams is correct.

Apr 19th, 2015

Apr 19th, 2015

Apr 19th, 2015

Answer to "a" is listed: nth day (n-1 value) + (0.10) (n-1 value) is the model equation.

Sorry I didn't make it clear enough for nth day, the model equation is above.

Apr 20th, 2015

...
Apr 19th, 2015
...
Apr 19th, 2015
Dec 2nd, 2016
check_circle