Question

I don’t know how to answer this?

Answer 1

Answer: a bigger or equal to 20

Step-by-step explanation:

2a/5 - 2 _> a/4 + 1

8a/20 - 40/20 _> 5a/20 + 20/20

8a - 40 _> 5a + 20

3a _> 60

a _> 20

Answer 2

SOLUTION SET ={a/a≥20}

Step-by-step explanation:

`(2a)/(5)-2\geq(a)/(4)+1`

`adding 2 on both sides`

`(2a)/(5)-2+2\geq (a)/(4)+1+2`

`now subtracting (a)/(4) on both sides`

`(2a)/(5)-(a)/(4)\geq 3`

`takig LCM as 20\\(8a)/(20)-(5a)/(20)\geq 3`

`(3a)/(20)\geq 3`

`by cross-multiplication`

3a≥3×20

3a≥60

dividing 3 on both sides

3a/3≥60/3

a≥20

SOLUTION SET ={a/a≥20} is the answer

i hope this will help you :)