math wizzes... help?

Question

1) what is the sum of the number of corners, sides, and edges on a cube?

2) In what year will the USA celebrate its tercentennial?

3) When John Hancock signed the Declaration of Independance, his age was a multiple of 13 and the sum of the digits was 12. How old was he when he signed the document?

4) The diameter of a tennis ball is 2.5 inches. How many tennis balls can fit in a can 2.5 across and 1 foot long.

5) The largest painting in existance is the "Battle of Gettysburg." it weighs 1792 more pounds than 5 tons. how many pounds does it weigh?

Answer 1

1.sides:6
edges:12
corners:8

2. tercentennial=300 years
1776+300= the year 2076

3.13*3=39
3+9=12
he was 39

4. 2.5 inches wide means they must be single file
four 2.5 inch wide tennis balls can fit in 12 inches
4*1=4 tennis balls

5.short ton or long ton
short ton=2000 lbs long ton=2400 lbs, but the former is more common

2000*5 + 1792 = 11792 lbs

hope that helps

Answer 2

number 1
corners=8, sides=6, edges=12
8 + 6 + 12 = 26

number 2
tercentennial means 300 years.
1776 + 300 = 2076

number 3
john hancock was 39 years old.

number 4
12 / 2.5 = 4 r2 = 4 tennis balls

number 5
5 tons = 10000 pounds
1792 + 10000 = 11792 pounds


i hoped they're right. btw, what is this for?

Answer 3

12 edges 8 corners 6 sides = 26
tercentennial = 300 years so the year 2076
13 x 3 = 39 and 3+9 = 12 so 39 years old
diameter of 2.5 x 4 = 10 and 2.5 x 5 is 12.5 and thats over a foot so only 4 tennis balls
1 ton = 2,000 lbs so 5 tons = 10,000 lbs 10,000+ 1792 = 11,792 lbs

Answer 4

1: corners 8, sides 6, edges 12, sum = 26
2: 300 years from 1776 is 2076
3: 39
4: 12/2.5= 4, remainder 2, so 4 balls
5: if a short ton is meant (as opposed to a long ton or metric tonne) it weighs 5 x 2000 + 1792, or 11792 lbs.

Answer 5

corners - 8; sides - 6; edges - 12

2076 ?

39

12/2.5 = 4

11,792

Answer 6

1) 26

2) 2076

3) 39

4) 4

5) 11,792 pounds

Answer 7

1. 26
2.2076
3.39
4.4
5.11792 pounds