Question

Can someone help me don't show my math hw? ily and tysm.

Answer 1

Explanation:

16)

`(4)/(10) , (32)/(72)\\\\(4)/(10) = (32)/(72)`

Cross multiply,

4 * 72 = 32 * 10

288 ≠ 320

So, these are not in proportion.

17)

`(40)/(25) = (32)/(20)`

Cross multiply,

40 * 20 = 32 * 25

800 = 800

So, these are in proportion.

18)

`(15)/(45)=(9)/(c)`

Cross multiply,

15 * c = 9*45

c =
`(9*45)/(15)`

c = 9*3

c = 27

19)

`(16)/(120) = (v)/(15)`

Cross multiply

16 * 15 = v * 120

`(16*15)/(120) =` v

v = 2