What we know:
Carpet cleaner a charges $28.25 plus $18 a room. Carpet cleaner B charges $19.85 Plus $32 a room.

What we need to find:
Which equation can be used to find the number of rooms for which the total cost of both carpet cleaners is the same?

28.25 + 18x=19.85 + 32x

7 0

3 years ago

Look at the sequence in the table.

malfutka [58]

Answer:

Step-by-step explanation:

The consecutive values of $a_{n}$ have a common difference d, that is

d = 8 - 3 = 13 - 8 = 18 - 13 = 23 - 18 = 5

This indicates that the sequence is arithmetic.

The recursive formula allows the next term in the sequence to be found from the previous term by adding 5, thus

$a_{n}$ = $a_{n-1}$ + 5 → A

7 0

3 years ago

What is the circumfrenice of a diamiter of 7 inches

KIM [24]

Answer:

22 in

Step-by-step explanation:

circumference of a circle = 2 π r

where radius (r) = 7/2 in. = 3.5 in

C = 2 π (3.5)

= 22 in

6 0

3 years ago

Read 2 more answers

A whole lotta points. Please answer its life and death urgency. I will give everything, including brainliest. But ONLY if you an

Oksana_A [137]

Answer:

The correct answer is 31x + 0.5

Step-by-step explanation:

∵ 13x + 5 + 17x - 4.5 + x

To solve this correctly you must to add the coefficients of the like terms (terms who has same variables or constant terms)

∵ 13x , 17x , x are like terms ⇒ terms with same variable

(same letters and same power)

∵ 5 , 4.5 are like terms ⇒ constant terms (numbers only)

∴ (13x + 17x + x) + (5 - 4.5) = 31x + 0.5

* The error of first answer:

- 18x + 17x - 4.5 + x

- She add 13x + 5 = 18x ⇒ she add unlike terms

* The error of second answer:

- 35x - 4.5 + x

- She add 13x + 5 + 17x = 35x ⇒ she add 2 like terms with 1 unlike term

* The error of third answer:

- 30.5x + x

- She add 13x + 5 + 17x - 4.5 = (13x + 17x) + (5 - 4.5) =

30x + 0.5 ⇒ she add 2 like terms and 2 constant terms

and then add the 2 unlike answers

* The error of fourth answer:

- 31.5x

- She add 13x + 5 + 17x - 4.5 + x = (13x + 17x + x) + (5 - 4.5) =

31x + 0.5 ⇒ she add 3 like terms and 2 constant terms

and then add the 2 unlike answers

5 0

3 years ago