Answer:
The temperature of the coffee after 10 minutes will be 21.27°C.
Step-by-step explanation:
The equation representing the elapsed time, <em>m</em>, in minutes, since the coffee was left to cool, and the temperature of the coffee, <em>T</em>, measured in °C is:
Compute the temperature of the coffee after 10 minutes as follows:
Thus, the temperature of the coffee after 10 minutes will be 21.27°C.
<h2>
<u>Answer:</u></h2>
=> B) The amount of popcorn that fits in a particular container.
<h2>
<u>Explanation:</u></h2>
=> The amount of space that a substance or object occupies, or that is enclosed within a container is known as <u>volume.</u><u> </u> The first & third option measures the surface area while the fourth option measures the distance covered. Thus, the second option (b) is the correct answer.
<h3>Check the possibilities:</h3><h2>A:</h2>
u(n)=n-1
u(6)=6-1= True
u(10)=10-1≠7 False
<h3>
A is eliminated.</h3>
<h2>
B:</h2>
u(n)=2n-7
u(6)=2(6)-7=12-7=5 True
u(10)=2(10)-7=20-7≠7 False
<h3>
B is eliminated.</h3>
<h2>
C:</h2>
u(n)=0.5n+2
u(6)=0.5(6)+2=3+2=5 True
u(10)=0.5(10)+2=5+2=7 True
<h2>
C is your answer.</h2>
<h3>
Check D although we know it's C:</h3>
u(n)=n/6 +4
u(6)=6/6 +4=1+4=5 True
u(10)=10/6 +4=2.5+4=6.5≠7 False
Answer:
4
Step-by-step explanation:
-3(4x +3)+4(6x +1)=43
-12x-9 +24x +4 =43
12x - 5=43
12x=43 +5
12x=48
x=48 :12
x=4
Answer:
B
Step-by-step explanation: If fewer that were born died, then that allows them to reproduce more.
