A lake near the Arctic Circle is covered by a 2-meter-thick sheet of ice during the cold winter months. When spring arrives, the warm air gradually melts the ice, causing its thickness to decrease at a constant rate. After 3 weeks, the sheet is only 1.25 meters thick. Let y represent the ice sheet's thickness ( in meters) after x weeks. Complete the equation for the relationship between the thickness and number of weeks.
Answer:
y = 2 - 0.25x
Step-by-step explanation:
From the question, the initial thickness of the ice sheet = 2 meters,
After 3 weeks, the thickness of ice sheet reduced to 1.25 meters
Hence, the difference in the thickness in 3 weeks is calculated as:
2m - 1.25m = 0.75m
The amount of changes that occurred in 3 weeks is given as:
= 0.75/3 = 0.25 meters,
We are told that, the ice is melting with the constant rate.
Therefore, the equation for the relationship between the thickness and number of weeks is given as:
y = 2 - 0.25x
8x - 3x = 20 - 10
5x = 10
x = 10/5
x = 2
the answer is 2
hope that helps! :)
Answer:
log(2)
Step-by-step explanation:
log(4) − log(2)
log(4/2)
log(2)
Hi There!
Answer:
$24
Step-by-step explanation:
= 1/4 + 1/3
= 3/12 + 4/12
= 7/12
7/12a + 8 = 22
Subtract 8 to both sides of the equation.
7/12a + 8 - 8 = 22 - 8
Simplify
7/12a = 14
Switch
a = 12/7 * 14
Simplify
a = $24
Hope This Helps :)
Answer:
oh.
Step-by-step explanation: