Question

Pa hellpppppp huhu kailangan lang for assignment

Answer 1

I will turn those ratios into fractions and then either cross multiply or isolate the missing variable and solve.

1)

`(10)/(5) =(18)/(x) \\\\x=((18)(5))/((10))\\\\x=9`

2)

`(3)/(x)\ =\ (27)/(45) \\\\x=((3)(45))/((27))\\\\x=5`

3)

`(x)/(5)\ =\ (21)/(7) \\\\x=((21)(5))/(7))\\\\x=15`

4)

`(9)/(10)\ =\ (x)/(20) \\\\x=((9)(20))/((10))\\ \\x=18`

5)

`(x)/(30)\ =\ (20)/(10) \\\\x=((20)(30))/((10)) \\\\x= 60`