Question

-20x+18≥-102 solve this inequality

Answer 1

Answer:

-20x >= -120

x < or = 6

14h > 280

h > 20  

Step-by-step explanation:

Mark worked more than 20 hours. The second equation

Answer 2

Answer:

1) x≥6

--------------------------------------

--------------------------------------

2) h  > 20

Mark worked more than 20 hours.

Step-by-step explanation:

1) -20x+18≥-102

-20x≥-102-18

-20x≥-120

Dividing -20 both side

$\frac{-20}{-20}x$≥$\frac{-120}{-20}$

x≥6

--------------------------------------

--------------------------------------

2) 14h + 25 > 305

14h  > 305-25

14h  > 280

Dividing 14 both side

$\frac{14}{14}h > \frac{280}{14}$

h  > 20

Mark worked more than 20 hours.