Answer:
7 inches
Step-by-step explanation:
First you have to find the average height of each class.
4th Grade:
56, 47, 54, 51, 53, 58, 48, 54, 46, 53
Then you have add it all up and divide it by how many students there are.
56 + 47 + 54 + 51 + 53 + 58 + 48 + 54 + 46 + 53 = 520
520 ➗10= 52
Same process for the 7th Grade.
You end up getting 52 and 59. You then Subtract it to get the answer to the question.
52 - 59= 7 inches
Answer:
1/2+1.5
I think. I'm sorry if I'm wrong
Step-by-step explanation:
Since you're adding x feet to the length which is 12 feet:
New area: (12+x)10.5
Answer is 12.50. u can comment on my answer if you would like to see how that is the correct answer :)
Answer:
Me and my massive brain, among other massive things of mine, believe it to be -1
Step-by-step explanation: