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3 years ago

If A gallon of milk weighs 8 pounds, how many gallons of milk are in 1 ton

Mathematics

1 answer:

vichka [17]3 years ago

4 0

Answer: 250 gallons in a ton of milk.

Step-by-step explanation:

if a pint is a pound the world around 2 pints to a quart 4 quarts to a gallon makes a gallon 8 pounds so 250 gallons in a ton of milk.

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A tank contains 10 liters of pure water. Saline solution with a variable concentration 5 grams of salt per liter is pumped into

algol [13]

Answer:

dQ(t)/dt = 20 - 2Q(t)/5 , Q(0) = 0

Step-by-step explanation:

The mass flow rate dQ(t)/dt = mass flowing in - mass flowing out

Since 5 g/L of salt is pumped in at a rate of 4 L/min, the mass flow in is thus 5 g/L × 4 L/min = 20 g/min.

Let Q(t) be the mass present at any time, t. The concentration at any time ,t is thus Q(t)/volume = Q(t)/10. Since water drains at a rate of 4 L/min, the mass flow out is thus, Q(t)/10 g/L × 4 L/min = 2Q(t)/5 g/min.

So, dQ(t)/dt = mass flowing in - mass flowing out

dQ(t)/dt = 20 g/min - 2Q(t)/5 g/min

Since the salt just begins to be pumped in, the initial mass of salt in the tank is zero. So Q(0) = 0

So, the initial value problem is thus

dQ(t)/dt = 20 - 2Q(t)/5 , Q(0) = 0

3 0

2 years ago

Kameryn types 75 words per minute and is just starting to write a term paper. Joe already has 510 words written and types at a s

AnnZ [28]

Answer:

Kameryn will have more words typed than Joe when the number of minutes exceeds 34.

Step-by-step explanation:

Let

x -----> the number of minutes

y ----> the total words typed

we know that

<em>Kameryn</em>

$y=75x$ -----> equation A

$y=60x+510$ -----> equation B

Solve the system of equations by substitution

Substitute equation A in equation B and solve for x

$75x=60x+510$

$75x-60x=510$

$15x=510$

$x=34\ minutes$

That means

For x=34 minutes

The amount of words written by Kameryn and Joe are the same.

therefore

For x > 34 minutes

Kameryn will have more words typed than Joe when the number of minutes exceeds 34.

6 0

3 years ago

How many sides has a regular polygon whose sum of interior angles is 540degrees

Svetllana [295]

It’s a pentagon (5 sides) . (n-2) x 180°. if you put it into the formula and do the reverse. 540 / 180 = 3
, 3+2 = 5

7 0

3 years ago

What expression gives the distance between the points (4,6) and (7,-3)?

solniwko [45]

Answer:

$\sqrt{(-3^2-6)+(7^2-4^2)}$

Step-by-step explanation:

Use the form: $\sqrt{(x^2-x^1)+(y2-y1)^2$

so: $\sqrt{(-3^2-6)+(7^2-4^2)}$

6 0

3 years ago

How many sixteenth notes would be needed to have the same duration as 3 quarter notes? Represent this as a fraction.

Ksenya-84 [330]

12/3. There are 4 sixteenth notes in every quarter note.

8 0

3 years ago