A tank that holds up 10 gallons. when its active, a drain empties water from the tank at a constant rate, when Jada first see the tank, it contains 7 gallons of water. three minute later the tank contains five gallons of water.

At what constant/rate is the amount of water changing in the tank?

Answer:

p=1/5t

Step-by-step explanation:

Since t is 100% of the items sold and p is 20% of that, the profit, p is 20% of t, or 1/5t.

Answer:

p = t(0.2)

Step-by-step explanation:

The profit is 20% of the total price. So if you multiply the total price by 0.2, you will get 20% of the total price which is the profit.

Answer:

y=-2x+5

Step-by-step explanation:

Answer:

well that it good sir is a rectangle with a square on it

Answer:

When the pans contain exactly the same mass the beam is in balance. ... You can place an object in one pan and standard weights in the other to find what the object weighs. Here balance scales are used to show that the box "x" has a mass of 4

Answer:

a balances measure mass, while scales measure weight. So if you bring a balance and a scale to the moon, the balance will accurately give you the mass of, say, a moon rock, whereas the scale will be affected by the gravity. A balance determines mass by balancing an unknown mass against a known mass.

Step-by-step explanation:

its right believe me and mark brainliest plz

Answer:

the second : the angles are congruent and the side lengths are proportional

Answer:

2 ft 4 inches

Step-by-step explanation:

12 inches = 1 ft

28/12=2.4

Answer:

20%

Step-by-step explanation:

Because 144 OUT OF the 180 seventh grade students attended, this would represent 144/180.

But since we are trying to solve how many did NOT attend the dance, you must subtract 144 from 180 which equals 36. So 36/180 did not attend the dance.

But to make it a percentage, you divide 36/180. Fraction and percentage are like buddies! That's why it is very simple to make a fraction into a percentage.

36/180 can be simplified to 1/5, which as a decimal, is 0.20.

0.20 is same as 20%, so this should be the students that did not attend the dance.

I hope this helps. If this is wrong, I truly apologize...

Answer:20

Step-by-step explanation:

20

Answer:

x = - 10

Step-by-step explanation:

Given

10 - x = - 2x ( add 2x to both sides )

10 + x = 0 ( subtract 10 from both sides )

x = - 10

Answer:

y divided by 6 1/4 = 11 3/4

Step-by-step explanation:

First, change the mixed numbers into improper fractions:

y divided by 25/4 = 47/4

Next, multiply both sides by 25/4:

y divided by 25/4 x 25/4 = 47/4 x 25/4

The 25/4's on the left side of the equation cancel each other out, leaving you with:

y = 47/4 x 25/4

Multiply 47 x 25 and keep the same denominator:

y = 1,175/4

Divide and:

y = 293 3/4

It is C

3/4* 2/3= 6/12=1/2

I know it was kindda tricky but its a simpile question

Answer:x=6

Step-by-step explanation:

Answer: D y=20

Step-by-step explanation: I minus 115 and 120 and and multiplied 4x and i got y=20. I hope this helps

Answer:

1st=2. (-7,9) (-18,9)

2nd=4. y= 5/9x+10

Answer:

i could be wrong but i think it is between July and September.

Step-by-step explanation:

because it went from 82 to 70 to 60 dollars while in May to August went from 82 to 66 to 82 to 70 so it increased back while answer A did not

Answer:

8x-4y=-4

-3x+4y=5

+

-----------------(adding equation)

5x=9

is a required answer

answer: -6a square +2a

Step-by-step explanation:

2(-3a² + a)

=-6a square +2a

Answer:

The ratio is 55:77

Step-by-step explanation:

Answer:

x= -10 and true

Step-by-step explanation:

if you plug -10 in for x you get -22=-22 which makes it true

Answer:

5

Step-by-step explanation:

4x5=20

20+5=25

Answer:

2.) Infinitely many solutions

3.) No solutions

Step-by-step explanation:

To solve systems of equations graphically, you need to find where they intersect

2.) First put each equation in the form y=mx+b

x-y=6 -> y= x-6

2x=12+2y -> y= x-6

Then, graph each line

Since we have the same equation, the lines are on top of each other so there are infinitely many solutions as they intersect everywhere.

To check, plug a point in from the graph into both equations and you should get 0=0

3.) First put each equation in the form y=mx+b

1/2x-y=4 -> y=1/2x-4

2y=x+6 -> y=1/2x+3

Then, graph each line

Since the lines have the same slope but a different y intercept, the lines are parallel. Therefore, there are no solutions as they do not intersect.

To check your answer, you would one equation as the y in the other equation.

2(1/2x-4)=x+6, then solve for x

Then plug that x into the original equations, and you'll see they are not equal. Hope that helps!

Answer:

9.534 kg per dollar is the better deal

Step-by-step explanation:

when you covert 9.534 kg to lb you'll get 21.019 pounds which is a much better deal than 4, and because 21>4

Answer:

we have

slope=(-5--8)/(x-7)

-3/4=3/(x-7)

-3(x-7)=3×4

-3x+21=12

21-12=3x

3x=9

x=9/3=3

Answer:

x = 3

Step-by-step explanation:

slope = [tex]\frac{y_{2} - y_{1} }{x_{2} -x_{1} }[/tex]

Using the your two points the slope = m = [tex]\frac{-8 + 5}{7-x} = \frac{-3}{4}[/tex]

                                                                       [tex]\frac{-3}{7-x} =\frac{-3}{4}[/tex]

Since the numerators are equal, then the denominators must be equal.

So, 7 - x = 4

-x = -3

x = 3

Answer:

y = x² - 6x +5

Step-by-step explanation:

(x -1)(x-5) = y

x² - 5x - x + 5 = y

x² - 6x +5 = y

Answer:

The equation for that would be 5.75x=105 and if you wanted the value for x it is 18.26(18 shirts)

Step-by-step explanation:

SInce she can't buy any decimal or fraction of a shirt then it would be 18 shirts.

Answer:

Please provide a diagram as the question is confusing.

Answer:

1/6+2/6=3/6

1/2

Step-by-step explanation:

Answer:

1/6+ 1/3= 1/2

Step-by-step explanation:

first find the LCM of the denominator

LCM of 6&3 = 6

1+2/6 = 3/6

reduce to the lowest fraction

3/6 = 1/2