Change both measurements to the same unit of measure and find the scale factor.
1) 1ft model of a 1in. fossil
2) 20cm model of a 28m rocket
3) 2ft model of a 30yd sports field
4) 3ft model of a 5yd whale
To find the scale factor, we need to change both measurements to the same unit of measure. Let's convert the measurements for each scenario:
1) 1 ft model of a 1 in. fossil:
To convert inches to feet, we divide by 12.
1 in. = 1/12 ft.
The scale factor is then 1:1/12, which simplifies to 12:1.
2) 20 cm model of a 28 m rocket:
Since 1 meter is equal to 100 centimeters, we divide centimeters by 100 to convert to meters.
20 cm = 20/100 m = 0.2 m
The scale factor is then 1:0.2, which simplifies to 5:1.
3) 2 ft model of a 30 yd sports field:
To convert yards to feet, we multiply by 3.
30 yd = 30 * 3 ft = 90 ft
The scale factor is then 1:90, which simplifies to 1:45.
4) 3 ft model of a 5 yd whale:
To convert yards to feet, we multiply by 3.
5 yd = 5 * 3 ft = 15 ft
The scale factor is then 3:15, which simplifies to 1:5.
In summary, the scale factors for each scenario are:
1) 12:1
2) 5:1
3) 1:45
4) 1:5
Well go ahead and try.
what is 12 inches to 1 inch?
In general if you are a physicist and want to change units you write it out so the ones you want to go away cancel
like
1 foot * 12 inches / foot = 12 inches
or
2200 fishes * 1 school / 100 fishes = 22 schools