pls help again. find the ratio of the first quantity to the second quantity?

Question

1] 18cm to 3dm_____ 2] 24 boys to 28 girls____ 3] 45 dm to 5 m____ 4]560 m to 2.3 km____ 5] 12 cicles to 21 squares_____ 6] 15 hours to days_____ .

Answer 1

use the formula y = mx + b for all your needs.

Answer 2

1] 18/30=3:5
2] 24/28=6:7
3] 45/50=9:10
4] 560/2300=28:115
5]12/21=4:7
6]15/15=1:1

Answer 3

1) 6 : 1

2) 6 : 7

3) 9 : 1

4) 115 : 28

5) 4 : 7

6) 5 : 8


I'm sure that 1st one is 18cm to 3cm (not 30) and therefore the ratio is 6 : 1 !!!

Answer 4

1) 3:5
2) 6:7
3) 9:10
4) 28:115
5) 4:7
6) 5:8

Answer 5

1) 1dm = 10cm; Ans: 18:30 = 3:5

2) 24:28 = 6:7

3) 1m = 100cm = 1000dm; Ans: 45:5000 = 9:1000

4) 1km = 1000m; Ans: 560:2300 = 28:115

5) 12:21 = 4:7

6) how many days? @.@

Answer 6

1)18cm to 3dm>18cm to 30cm>GeatestCommonFactor>6=6 to 5

2)24b to 28g>GreatestCommonFactor>4=6 to 7

3)45dm to 5m>45dm to 50dm>GreatestCommonFactor>5=9 to 10

4)560m to 2.3km>560m to 2300m>GreatestCommonFactor>20= 28 to 115

5)12ci to 21sq>also equivalent to 12ci to 21sq(because its undefined)

615hr to 1d= 15hr to 1d

Answer 7

Dear, I think you should do your homework yourself,
but here is a tip for you. To start, convert all the measurements to the same measurement (i.e. convert everything to the smallest unit).
if the units are not convertible (i.e. boys to girls or circle to squares) then. leave it..

Answer 8

6cm:1dm
6boys:7girls
9dm:1m
5600m:23km
4circles:7squares
15hours:1day