Answer:
the answer is 49
Step-by-step explanation:
We have to use the equation
![d=rt](https://tex.z-dn.net/?f=d%3Drt)
Where r = 12 mph, d = 20 miles, let's find <em>t</em>.
![\begin{gathered} 20=12t \\ t=\frac{20}{12}=\frac{10}{6}=\frac{5}{3} \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%2020%3D12t%20%5C%5C%20t%3D%5Cfrac%7B20%7D%7B12%7D%3D%5Cfrac%7B10%7D%7B6%7D%3D%5Cfrac%7B5%7D%7B3%7D%20%5Cend%7Bgathered%7D)
She'll take 5/3 hours to get there which is equivalent to 1 2/3 hours.
Let's transform 2/3 hours to minutes to find the exact time she has to leave.
We know that 1 hour is 60 minutes.
![\frac{2}{3}hr\cdot\frac{60\min}{1hr}=\frac{120}{3}\min =40\min](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B3%7Dhr%5Ccdot%5Cfrac%7B60%5Cmin%7D%7B1hr%7D%3D%5Cfrac%7B120%7D%7B3%7D%5Cmin%20%3D40%5Cmin%20)
So, she will take exactly 1 hour and 40 minutes.
<h2>If you have to get there at 10:00 A.M., then she has to leave at 8:20 A.M.</h2>
Answer:
It’s 42
Step-by-step explanation: when Quinn return home, it was 0 minutes he turned on the air conditioner. So temperature at that time is equal to value of Q when t=0
Q=42-0.7t
=42-0.7(0)
=42
Estimating is gussing and rounding is like if it's 17 you'll round down to 15 if it's 18 you'll go up to 20
Answer:
Hi myself Shrushtee.
Step-by-step explanation:
Your answer is
• c 15
please mark me as brainleist