Could u translate ? To English
Answer:
Step-by-step explanation:
Newton's cooling model is:
Where
t is the time in hours
is the ambient temperature
is the initial temperature of the body
We know that:
Then after 7 hours the temperature of the liquid will be:
Answer:
x =20
Step-by-step explanation:
We can use similar triangles and proportions to solve. Take the smaller triangle side on top and the larger triangle side on the bottom.
11 10
---------- = --------------
11+121 10 +5x+10
Combine like terms
11 10
---------- = --------------
132 5x+20
Using cross products
11*(5x+20) = 10*132
55x+220 = 1320
Subtract 220 from each side
55x+220-220 = 1320-220
55x = 1100
Divide by 55
55x/55= 1100/55
x =20
Answer:
The car traveled 232 miles in one hour.
Step-by-step explanation:
<em>232 miles per hour.</em>
<em />
Answer:
B
Step-by-step explanation:
See when you multiply 3 x 4 or 4 x 3 the answer is the same (is equivalent)
Similarly, -3 x 3 x -4/9 or 3 x -3 x 4/9 is equivalent
Therefore option(B)
