find the length of each object on the scale drawing with the given scale.then find the scale factor.
1. a bedroom 12 feet long; 1 inch = 3 feet.
2. a park area 38 meters wide; 0.5 cm. = 1 meters
3.A train travels 146 miles in 2 hours. at this rate, how many miles will it travel in 3.5 hours?
4. on a scale drawing, a DOG PEN IS 4 1/2 INCHES long. If 1 inch = 3 feet, what is the actual length of the dog pen?
Thank you for your answers!!!!!!!!!!
2007-02-02 11:25:51 · 7 answers · asked by Eat organic stuff 2 in Science & Mathematics ➔ Mathematics
umm show how you got it
2007-02-02 11:39:13 · update #1
1
12feet 1inch = 3ft
x=12/3
x=4
4inches for the bedroom
2
first, make x whole (solve for X first)
1/2x=1 = x=2
now
X=38/2
X=19
3
146/2=x (miles per hour)
73* 3 1/2 = how far in 3.5 hours
73*3 (219)
and 73 * 1/2 (36.5)
219+36.5 = how far
255.5 miles
4
3(4.5)1 = x
13.5 =x (actual length of dog pen)
2007-02-02 11:40:05 · answer #1 · answered by Sparky 4 · 0⤊ 0⤋
1. 4 feet. if 3 feet=1 inch then 12 feet=12/3=4 inches
2. 19 cm. if 1 meter=.5 cm then 38 m 38*.5=19 cm
3. speed of train=146/2= 73 miles/hr. so distance travelled in 3.5 hrs will be 73*3.5 miles
4.1 inch =3 feet. So 4 1/2 inches =13.5 feet
2007-02-08 07:06:16 · answer #2 · answered by senorita 1 · 0⤊ 0⤋
1) (12/3) * 1 = 4 inches
2) (38/1) * 0.5 = 19 cm
3) 146 *3.5 /2 = 255.5 miles (the train travels by a speed of 73 MPH)
4) 4 1/2 * 3 = 13.5 feet
2007-02-02 19:39:54 · answer #3 · answered by M. Abuhelwa 5 · 0⤊ 0⤋
1. ans = 432 feet
1 ft=12in
therefore 12 ft x (12 inches/1 ft) = 144 inches
from the given 1 inch = 3 feet
then 144 inches x (3ft/1 inch) = 432 ft
2.760 meters
1 meter = 100 cm
38 meters x (100 cm/1 meter)=380 cm
from your given
.05 cm = 1 meters
380 cm x (1 meters/.5 cm) =760 meters
3. ans. = 255.5 miles
use fraction to sove this problem
146/2 = miles /3.5
miles=(146/2) x 3.5
miles = 255.5 miles
4. ans = 13.5 feet
given: dog pen is 4 1/2 inches long
from you, 1 inch = 3 feet
(4 1/2) inch x (3 feet/ 1inch) = 13.5 feet
2007-02-02 19:53:49 · answer #4 · answered by RAFAEL G 1 · 0⤊ 0⤋
1. 12 ft/3 ft = 4 inches
2. 38/2 =19cm
3. 146/2 x3.5 = 255.5
4. 4 1/2 in x 3 = 13.5
/=divided
x=multiplied
hope this helps!
2007-02-02 19:36:54 · answer #5 · answered by Sami 3 · 0⤊ 0⤋
1. 12 ft/3 ft = 4 inches
2. 38/2 =19cm
3. 146/2 * 3.5 = 255.5
4. 4 1/2 in * 3 = 13.5
2007-02-02 19:32:35 · answer #6 · answered by leo 6 · 0⤊ 0⤋
1. 4in
2. 76 cm (38/.5 which equals 38 x 2)
3. 255.5 miles (i'm not positive about this one)
4. 13.5 feet
2007-02-02 19:33:21 · answer #7 · answered by Katie 2 · 0⤊ 0⤋