Question

I don’t know how to answer this?

Answer 1

Answer:

SOLUTION SET ={a/a≥20}

Step-by-step explanation:

$\frac{2a}{5}-2\geq\frac{a}{4}+1$

$adding 2 on both sides$

$\frac{2a}{5}-2+2\geq \frac{a}{4}+1+2$

$now subtracting \frac{a}{4} on both sides$

$\frac{2a}{5}-\frac{a}{4}\geq 3$

$takig LCM as 20\\\frac{8a}{20}-\frac{5a}{20}\geq 3$

$\frac{3a}{20}\geq 3$

$by cross-multiplication$

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 :)

Answer 2

Answer: a bigger or equal to 20

Explanation:

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

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

8a - 40 _> 5a + 20

3a _> 60

a _> 20