Question

I need the answer to these, to be right, and you got to show the work on how you got the answer because if not I’ll get them wrong!! Thanks

Answer 1

For question A
N is 20, Because 3 * 4 is 12 then multiply 4 to 5 too, and get 20
For question B it is 12 cause 7 * 6 is 42, then multiply it to 2 too, and it is 12
For Question C it is 1/2 = 50/100

Answer 2

A:
`(5)/(3) = (N)/(12)`
Multiply both sides by 12
Answer:
`N = 20`

B:
`(7)/(2) = (42)/(N)`
Multiply both sides by 2,
`7 = (84)/(N)`
Multiply both sides by N,
`7N = 84`
Divide both sides by 7,
Answer:
`N=12`

C:
`(N)/(2)= (50)/(N)`
Multiply both sides by 2,
`N = (100)/(N)`
Multiply both sides by N,
`N^(2) = 100`
Simplify,
Answer:
`N = 10 , -10`

Hope I helped you!