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40 / 75% =40 / 0.75 =53 1/3 is 100%.

5y + 8 > 4y - 3

Subtract 8 from both sides.

5y + 8 - 8 > 4y - 3 - 8

5y > 4y - 11

Subtract 4y from both sides.

5y - 4y > 4y - 4y - 11

1y > -11

y > -11

This cat, on average, claps about 8.9 times per second.

Welcome, whover this wonderful new member is! 

Ohhhh ok thanks! That cleared it up I did the second step wrong

The answer is 12, my amigo.

h(z) = 2z² - 5z + 7

To find h(3c), replace each z with 3c.

h(3c) = 2(3c)² - 5(3c) + 7

Now just simplify.

h(3c) = 2(9c²) - 5(3c) + 7

h(3c) = 18c² - 15c + 7

Are these examples of what you mean?

34.375 = 34 and 375/1000 = 34 and 3/8

2.86 = 2 and 86/100 = 2 and 43/50

5.348 = 5 and 348/1000 = 5 and 87/250

Thank u!!!

Using the change of base formula:

\(\log_{2}(x/y) = \frac{log_{10}(x/y)}{\log_{10}2} = 3 \\~\\ \log_{10}(x/y)=3(\log_{10}2) \\~\\ \log_{10}(x/y)=\log_{10}(2^3) \\~\\ x/y = 2^3 \\~\\ x/y = 8\)

So x = 8y    and     y = x/8

I don't know what Guest did, but I'm pretty sure y can't be zero because that would make a zero in the denominator and that would mean that it doesn't equal 3, it would just not be a true statement.

How many pounds is a liter of oil?

Pounds and Liters are incompatible.

There are 0.2642 U.S.gallons in 1 Liter.

There are 0.22449 Imperial gallons in 1 Liter.

log_2 (x/y) = 3?

y = x/8 = (log(x/y))/(log(2)) = 3 = log(x/y) = log(8) = log((8 y)/x) = 0

Simplify the following:
3×3 a a + 3 a^2 + 3 a^2 - (4 a)^2

Multiply each exponent in 4 a by 2:
3×3 a a + 3 a^2 + 3 a^2 - 4^2 a^2

4^2 = 16:
3×3 a a + 3 a^2 + 3 a^2 - 16 a^2

3 a×3 a = 3×3 a^2:
3×3 a^2 + 3 a^2 + 3 a^2 - 16 a^2

3×3 = 9:
9 a^2 + 3 a^2 + 3 a^2 - 16 a^2

9 a^2 + 3 a^2 + 3 a^2 - 16 a^2 = -a^2:
Answer: |-a^2

(3a * 3a) + (3a² + 3a²) - (4a)²

That is the same thing as:

(3a * 3a) + (3a² + 3a²) - (4a*4a)

Multiply 3a times 3a and 4a times 4a:

(9a²) + (3a² + 3a²) - (16a²)

The parenthesees are not necessary.

9a² + 3a² + 3a² - 16a²

These terms are all alike. They can be combined.

9 apples + 3 apples + 3 apples - 16 apples = -1 apples

9a² + 3a² + 3a² - 16a² = -1a² = -a²

Expand the following:
(5 t^2 - 2 w)^2

(5 t^2 - 2 w) (5 t^2 - 2 w) = (5 t^2) (5 t^2) + (5 t^2) (-2 w) + (-2 w) (5 t^2) + (-2 w) (-2 w):
5×5 t^2 t^2 - 2×5 t^2 w - 2×5 w t^2 - 2 (-2) w w

5 t^2×5 t^2 = 5×5 t^4:
5×5 t^4 - 2×5 t^2 w - 2×5 w t^2 - 2 (-2) w w

5×5 = 25:
25 t^4 - 2×5 t^2 w - 2×5 w t^2 - 2 (-2) w w

5 (-2) = -10:
25 t^4 + -10 t^2 w - 2×5 w t^2 - 2 (-2) w w

-2×5 = -10:
25 t^4 - 10 t^2 w + -10 w t^2 - 2 (-2) w w

-2 w (-2) w = -2 (-2) w^2:
25 t^4 - 10 t^2 w - 10 w t^2 + -2 (-2) w^2

-2 (-2) = 4:
Answer: |25 t^4 - 10 t^2 w - 10 w t^2 + 4 w^2

Volume =  [ Floor area ] x [height]

270  = 72 * Height    divide bboth sides by 72

270/72  = Height = 3.75 ft

8^2/3 =(8^2)^1/3 =64^1/3 =4

Omg thank you so much Cpill and other guest that helped a lot

500 x 12 =6,000 cm

6000 / 100 =60 meters - actual distance to the beach.

We have that  D/T  = R

Let the speed in still water be S   and let the current speed = C

So....the rate with the current is S + C   and the rate going against the current is S - C

And we know that

30/ 2.5  = S + C    

12  = S + C    (1)     and

30/4   =  (S - C) 

7.5 + C  = S   (2)

Put (2)  into (1)

12 =  7.5 + C + C

12  = 7.5 + 2C

4.5 = 2C     divide both sides by 2

2.25  mph  = C  = rate of the current

And, using (2), the speed of the boat in still water = 7.5 + 2.25 =  9.75mph

30 / 4 = 7.5 mph - the boat's speed upstream

30 2.5 = 12 mph - the boat's speed downstream

12 - 7.5 = 4.5 mph - the speed of the current both ways

4.5 / 2 = 2.25 mph - The actual speed of the current.

7.5 + 2.25 =9.75 mph - the speed of the boat in still water, which is the same as:

12 - 2.25 =9.75 mph

2 divided by 0 is infinity  

easy way to divide = this is what i do in my head - you can use pen and paper

E.G = 20 BY 2 = THERE ARE 20 SWEETS AND 2 PEOPLE WANT THEM. Then imagine sharing them sweets

Follow the exact same steps that you needed to do for the other problems. I will try to explain the steps super good so that you can do more problems like this on your own. :)

\(\frac{3x^2+2x+1}{x-1} = 3x + 1\)

Multiply both sides by (x-1):

\((\frac{3x^2+2x+1}{x-1})(x-1) = (3x + 1)(x-1)\)

Multiply out the right side. A lot of teachers teach it with the acroynm FOIL. It just means that you have to multiply each thing in the first set of parenthesees by each thing in the second set of parenthesees and add each product together.

\(3x^2+2x+1 = 3x(x) + 3x(-1) + 1(x) + 1(-1)\)

Multiply:

\(3x^2+2x+1 = 3x^2 - 3x + x - 1\)

Subtract 3x² from both sides:

\(2x+1 = - 3x + x - 1\)

Subtract 2x from both sides:

\(1 = - 3x + x - 1 - 2x\)

Combine like terms:

\(1 = - 4x - 1\)

Add one to both sides:

\(2 = - 4x\)

Divide both sides by -4:

\(-\frac{1}{2} = x\)

Can you show how you calculated that? Thank you so much for a quick answer.

not what this is for

I dont really wanna give you the main anser  i know = Spioler alert

your clue is timesing, times the distance by the scale of the map