(2) 20 cm = ? decimeter
(3) 10 hectometers = ? kilometers
(4) 4 decimeters= ? centimeters
(5) How many inches are in 3 feet?
2007-01-31 12:49:18 · 6 answers · asked by rosemariestewart64 1 in Science & Mathematics ➔ Mathematics
1. 2.8
2. 2
3.. 0.1
4. 40
5. 36 inches
2007-01-31 12:55:59 · answer #1 · answered by ? 2 · 2⤊ 0⤋
(1) 28 cm = ? decimeter?
1 dm=10 cm so 128cm/10cm/dm=12.8 dm
(2) 20 cm = ? decimeter
20cm/10cm/dm=2 dm
(3) 10 hectometers = ? kilometers
1 km=10 hm
10hm/10hm/km=1 km
(4) 4 decimeters= ? centimeters
4 dm* 10 cm/dm=40 cm
(5) How many inches are in 3 feet?
3 ft*12 in/ft=36 in
2007-01-31 21:36:09 · answer #2 · answered by yupchagee 7 · 0⤊ 0⤋
The first four questions are to help you learn the meanings of the prefixes deci-, centi- hecto- and kilo-.
A decimeter is 0.1 meter, a deciliter is 0.1 liter, and so on.
The meaning of centi- is .01 times a basic unit of measurement.
Hecto- means 100; Kilo- means 1,000.
2007-01-31 21:06:05 · answer #3 · answered by foxvalley 2 · 0⤊ 0⤋
1) 2.8 dm
2) 2 dm
3) 1 km
4) 40 cm
5) 36 inches
2007-01-31 21:24:22 · answer #4 · answered by cute_gurl 1 · 0⤊ 0⤋
1 - 2.8
2 - 2
3 - 1
4 - 40
5 - 36
2007-01-31 20:56:35 · answer #5 · answered by Michael Dino C 4 · 0⤊ 0⤋
1. .028decimeters
2007-01-31 21:40:23 · answer #6 · answered by Ryan T 2 · 0⤊ 0⤋