Jada walks up to a tank that can hold up to 10 gallons. When it is active, a drain empties water from the tank at a constant rate. When Jada first sees the tank, it contains 7 gallons of water. Three minutes later, the tank contains 5 gallons of water. At what rate is the amount of water in the tank changing? use a signed number, and include the unit of measurement in your answer.

Answer: - 2/3

Step-by-step explanation:

Given the following :

Amount of gallon tank can hold = 10

tank drains at a constant rate :

First look tank contains 7 gallons

After 3 minute,

Tank contains 5 gallons

Thus signifies a 2 gallon decrease in volume of water after 3 minutes

Therefore, the rate of change =( change in volume) / time

Rate of change = (final volume - initial volume ) / 3

(5 - 7)/ 3 = - 2/3

7 0

3 years ago

a local citizen wants to fence a rectangular community garden the length of the garden should be at least 110 ft, and the distan

Agata [3.3K]

______________
| |
| | y
|_____________|
x

The rectangular fence will have length x and width y, and we know that the distance around, the perimeter (2x+2y), should not exceed 380 ft. We also know that the length should be at least 110 ft, so x=110.
Now we can set up our inequality:
$2(110)+2y \leq 380$
$220+2y \leq 380$
$2y \leq 160$
$y \leq 80$

5 0

3 years ago

Is your home library statistics data a random sample? why or why not? give

jasenka [17]

Answer:

, YES

Step-by-step explanation:

Because we need data to search

8 0

3 years ago

Finding the distance between two points (-4,-3),(6,1)​

Finding the distance between two points (-4,-3),(6,1)