Answer:
27/125
Step-by-step explanation:
3/5 × 3/5 × 3/5
3×3×3 =27
5×5×5= 125
=27/125
Answer:
A. T=7.12°C; B. t=3.32min
Step-by-step explanation:
In order to find the answer we can use the Newton's law of cooling:
where:
y0=initial temperature - room temperature
k=coefficients
t=time
Because the outdoors temperature is 3°C, the initial temperature is 20°C, and because the thermometer reads 11°C after 1min we have:



A. Temperature after an extra minute.

so the answer is 7.12°C
B. Time in order to read 4°C



Answer:
3
Step-by-step explanation:
if you have 5 plates and you subtract 2 then you have 3 plates left
5-2=3
Answer:
C. (7, 14)
Step-by-step explanation:
You are given the equation and points (x, y) to plug into that equation. See which ones satisfy. The left side must equal the right side (7 in this case) when evaluating...
-5(7) + 3(14) = 7
-35 + 42 = 7
7 = 7
The point (7, 14) works. The other points will not yield the same result..
EX: (2, -1)
B is a wrong answer because...
-5(2) + 3(-1) = 7
-10 - 3 = 7
-13 = 7
-13 does not equal 7, so that is a wrong answer
51/3 =17 because 3×17 =51