What is the missing width of the speaker below when its volume is 30,000 cm3 ?

Width = 20 cm.

Step-by-step explanation:

Given : A cuboid  of volume 30, 000 cm³ with length 30 cm and height 500 mm.

To find : What is the missing width of the speaker below when its volume is 30,000 cm³ .

Solution : We have given that

Volume of cuboid = 30,000 cm³.

Length = 30 cm .

Height = 500 mm .

1 mm = cm.

500 mm =   cm.

500 mm = 50 cm.

Then height  = 50 cm .

Volume of cuboid = length * width * height .

Plugging the values of volume , length , height .

30,000 = 30 * width * 50 .

30,000 = 1500 * width .

On dividing both side by 1500 and switching the sides.

Width =  .

Width = 20 cm.

Therefore, Width = 20 cm.

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950