Question

Brainy reward help me pls

Answer 1

Answer:

-2/3 gallons/min

Step-by-step explanation:

let x = time in minutes

let y = volume of water in gallons

when x = 0, y = 7

when x = 3, y = 5

$\mathsf{rate \ of \ change \ = \dfrac{change \ in \ y}{change \ in \ x}=\dfrac{7-5}{0-3}=-\dfrac23 \ gallons/min}$

Answer 2

Answer:

$\sf \dfrac{2}{3} \ is \ the \ change \ per \ minute \ in \ the \ amount \ of \ water.$

explanation:

$\sf unit \ rate : \dfrac{y_1-y}{x_1-x}$

$\sf unit \ rate : \dfrac{7-5}{3-0}$

$\sf unit \ rate : \dfrac{2}{3}$