Check out the picture I've got the full explanations on there
Hope it's clear
<h2><u><em>Question- 1 + 1</em></u></h2><h2><u><em>Answer 2</em></u></h2><h2><u><em>Question 2+2 </em></u></h2><h2><u><em>Answer-4 </em></u></h2><h2><u><em>Question- 2+3</em></u></h2><h2><u><em>Answer- 5</em></u></h2>
Answer:
5
Step-by-step explanation:
S(t) = 3.82 - 0.2t
Step-by-step explanation:
After 7 weeks, the ice is 2.42 meters thick. The ice loses 0.2 meters of thickness per week; this means on the 7th week, it has lost 7(0.2) = 1.4 meters of thickness.
This means the ice started at 2.42+1.4 = 3.82 meters thick.
Our function will start at the original thickness of the ice, 3.82 meters.
Since the ice is losing thickness, we will subtract; it loses at a rate of 0.2 meters per week (t), which gives us 0.2t. This is subtracted from the original, 3.82 meters, giving us
S(t) = 3.82 - 0.2t
X = your number
x+16-30=36
x-14=36
x=50
Your number is 50.