You and your friend are having party. You are expecting 12 guests at this party. You would like everyone to have 4/5 of a cup of
1 answer:
Answer:
The number of cups needed for the party are 10.
Step-by-step explanation:
We are given that,
Total number of guests expected = 12
The amount of juice per person = cups
So, the number of cups needed to purchase for the party is given by,
Number of cups =
i.e. Number of cups =
i.e. Number of cups = 9.6 ≈ 10 cups
Hence, the number of cups needed for the party are 10.
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speed of the plane in still air is 76 m/s and speed of the wind is 28 m/s .
<u>Step-by-step explanation:</u>
Here we have , A plane traveled 1248 miles to Ft. Worth and back. The trip there was with the wind. It took 12 hours. The trip back was into the wind. The trip back took 24 hours. We need to find What is the speed of the plane in still air? What is the speed of the wind? Let's find out :
<u>For Going trip :</u>
Let speed of plane be u , and wind be v so : Speed = ( Distance ) / ( time )
⇒
⇒ ...........(1)
<u>For Returning Trip :</u>
⇒
⇒ ...........(2)
Adding both equations we get :
⇒
⇒
⇒
Putting this value in equation (1) we get :
⇒
⇒
Therefore , speed of the plane in still air is 76 m/s and speed of the wind is 28 m/s .