The cost of carpet cleaning companies charge is directly proportional to the number of rooms clean the cost of $20 for each room write a direct variation equation to represent the cost how many rooms can a hotel pay the company to clean for $200 write and solve an equation

r = C/20; 10 rooms

Step-by-step explanation:

Let C = the cost and r = the number of rooms.

C is directly proportional to r, so

C = kr, where r is the cost per room ($20).

C = 20r     Divide each side by 20

The equation for the number of rooms is

   r = C/20

If C = $200,

   r = 200/20

      = 10

The hotel can pay enough to clean 10 rooms.

answer: huh

step-by-step explanation:

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2