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Shalnov [3]
3 years ago
15

At noon, a tank contained 6 cm of water. After several hours, it contained 3 cm of water. What is the percent decrease of water

in the tank?
The percent decrease of water in the tank is [%.
Mathematics
2 answers:
tangare [24]3 years ago
5 0

Answer:

50

Step-by-step explanation:

masya89 [10]3 years ago
4 0

Answer:

50%

Step-by-step explanation:

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-4(2x-1)>5-3x. HELP!
BabaBlast [244]

-8x + 4 > 5 - 3x

Adding 3x to both sides,

-5x + 4 > 5

Subtracting by -4 on both sides,

-5x > 1

Dividing both sides by -5,

x < - 1/5

7 0
4 years ago
-0.5 = -4/7<br> True<br> False
taurus [48]

Answer:

Step-by-step explanation:

false

7 0
3 years ago
Read 2 more answers
Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2 and the profit
AleksandrR [38]
2x + 3y = 1470
3y = -2x + 1470
y = -2/3x + 490 <== slope intercept form
=================
y = -2/3x + 490
slope = -2/3
y int = (0,490)
=================
description of graphing : Plot ur point at (0,490). Since the slope is -2/3, starting at (0,490)...go down 2 and to the right 3,then down 2 and to the right 3 and you will eventually cross the x axis at the x intercept.

The x intercept can be found by subbing in 0 for y and solving for x
y = -2/3x + 490
0 = -2/3x + 490
2/3x = 490
x = 490 * 3/2
x = 1470/2 = 735...so ur x intercept is (735,0)

therefore, your line will cross the x axis at (735,0)
========================
function notation is : f(x) = -2/3x + 490
========================
suppose his profit is 1593....
2x + 3y = 1593
3y = -2x + 1593
y = -2/3x + 531

the graphs for the two months :
similarities : they both have the same slope of -2/3
differences : they have different x and y intercepts
By the way, these are parallel lines
===================
sorry about the last one....can't see the 3rd month graph


7 0
3 years ago
5 1/4 divided by 5/8
Gekata [30.6K]

Answer: 8.5

Step-by-step explanation: we was doing this in class

3 0
3 years ago
Read 2 more answers
Helppppppz plz rlly need it
Nastasia [14]
G(-1) = 1 / -1 = -1
f(g(-1)) = (-1)^2 + 9(-1) = 1 - 9 = -8 Answer

f(1/2) = (1/2)^2 + 9(1/2) = 1/4 + 4 1/2 =  19/4
g((f(1//2)) = 1 / 19/4 = 4/19 Answer
3 0
3 years ago
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