3. Kara needs 15 apples to make 2 pies. She made this table to show how many apples she would need for different numbers of pies.
Number of apples- 15 , 30 , 45 , 60
Number of pies- 2 , 4 , 6 , 8 , 10, 12
At this rate how many apples will Kara need to make 12 pies?
A. 75
B.25
C.90
D.120
4. Cheryl went on a 3 hour train ride. The train traveled at an average speed of 75 miles per hour.What was the total distance in miles that Cheryl traveled?
A.225
B.215
C.72
D.25
5. Mr. Hunan took a direct flight from Singapore to the Philippians.
The planes average speed 450 miles per hour.
Mr. Humans flight lasted 3.2 hours.
Which expression can be used to find the number of miles from Singapore to the Philippians?
A. 450 x 60 x 3.2
B. 3.2 x 60 over 450
C. 3.2 x 450
D. 450 over 3.2
Please help me. Im very poor skilled at math.
(3)
15=2
X=12
180=2x
(4)
Average speed=(total distance)/time
=75/3=
(5)
total distance=average speed×time
You're welcome....and hey am not a tutor here am student just like you .....keep working hard especially in your maths.......you would see the beauty of it
3. 90 because if you use repeated addition/multiplication then you get 90.
4. 225 because if you multiply 75 by 3 you get 225
5. would either be D or C but personally i would pick C because Miles per hour means you need to multiply but just google "How to calculate/find Miles Per Hour."
Thanks Writeacher and Isaac
Please DO NOT post anything about gaming here. As the owner of Jiskha says, this is a place for academic assistance. Gaming has no place here.
And BZ, please keep the name as I've altered it.
No worries, I'll explain how to solve each of these math problems step by step.
3. To find out how many apples Kara will need to make 12 pies, let's analyze the given table. We can notice that the number of pies is doubling while the number of apples needed is increasing by 15 each time. Therefore, the pattern is that Kara needs 15 more apples for each additional 2 pies.
So, if Kara needs 15 apples for 2 pies, she would need 30 apples for 4 pies, 45 apples for 6 pies, and so on.
To find out how many apples Kara would need for 12 pies, we need to continue this pattern. Since 12 pies is 6 times the number of 2 pies, we multiply the number of apples needed for 6 pies (45) by 6.
45 apples x 6 = 270 apples
Therefore, Kara would need 270 apples to make 12 pies.
4. To find the total distance that Cheryl traveled, we need to multiply her average speed by the duration of her train ride.
Cheryl's average speed is 75 miles per hour, and she was on the train for 3 hours.
To find the total distance, we multiply the speed (75 miles/hour) by the time (3 hours).
75 miles/hour x 3 hours = 225 miles
Therefore, Cheryl traveled a total distance of 225 miles.
5. To find the number of miles from Singapore to the Philippines, we need to multiply the average speed of the plane by the duration of the flight.
The plane's average speed is 450 miles per hour, and Mr. Hunan's flight lasted 3.2 hours.
To find the number of miles, we multiply the speed (450 miles/hour) by the time (3.2 hours).
450 miles/hour x 3.2 hours = 1440 miles
Therefore, the number of miles from Singapore to the Philippines is 1440 miles.
Now, looking at the answer choices for each question:
3. The correct answer is D. 120 apples (since we calculated that Kara needs 270 apples for 12 pies).
4. The correct answer is A. 225 miles (which we found the total distance to be).
5. The correct answer is C. 3.2 x 450 (which is the calculation we performed to find the number of miles).
I hope this helps! Let me know if you have any further questions.
3. Kara needs 15 apples to make 2 pies. She made this table to show how many apples she would need for different numbers of pies.
Number of apples- 15 , 30 , 45 , 60
Number of pies- 2 , 4 , 6 , 8 , 10, 12
At this rate how many apples will Kara need to make 12 pies?
So she'd need 60 apples to make 8 pies, right? Then just add 15 to the number of apples two more times. What do you get?
Now YOU work on the others and post YOUR answers or where you get stuck. Then a math tutor can help you.