All Answers 355975 Answers

True

Not quite exactly, the amounts of the solutions are different. 

30% of 2 liters is .6 liters. 

20% of 3 liters is .6 liters. 

Total 1.2 liters of acid and 5 liters of total mixture 

1.2/5 = 24%

I hope this helped. :))

=^._.^=

The mixture is (30% + 20%)/2 = 25% acid.

For this, we can make an inequality. So, here is what we have, according to the question:

2 sacks of sugar + 3 sacks of flour <=  40 lbs

flour <= 2 sacks of sugar + 6lbs

Using variable form, this is:

2s + 3f \leq 40

f \leq 2s+6

Solving the inequalities, we get f <= $\boxed{27/2}$ pounds

it's wrong ;-;

that's like the oldest error in here lmao

https://drive.google.com/file/d/1Cuv54jS2lzHhDElXlbGBUx12vBJB3EZl/view?usp=drivesdk

here it is you might acces it here.

To inverse a function, you can switch x and y. 

f(0) = -1

f(4) = 0

f(9) = 3

f(3) = 9

Can you find f(f(9))?

=^._.^=

Look, this website is FREE, the people here aren't gaining anything from helping you and they aren't expected to. 

The people who are answering these questions are insanely busy. 

Many are in school or have jobs. 

They are only doing it because they're kind people who want to help others learn. 

One of the reasons people might not help is because they can't acess the question or can't solve it. 

=^._.^=

The solution is (-3/2, 5/4].

Hello Talia. :))

I'm sorry, I think you got 2625/25 wrong. 

25*25 = 625. 

=^._.^=

Hey there, Guest!

So, the equation to find a circle's circumference is \(C=πd\).

So, let's insert the numbers now: \(C=π2\)

I know that IXL makes you use 3.14 for π, so the final equation should be 3.14*2.

And the answer to that should be 6.28.

And there, we have it, the answer.

Hope this helped! :)

( ﾟдﾟ)つ Bye

All numbers congruent to 2 mod 8 will be equal to 2 plus or minus some multiple of 8.

Therefore in the range given of numbers 1 through 50, the tiles with the following numbers will be blue: 2,10,18,26,34,42,50.

Therefore there are 7 blue tiles in the box of 50 tiles.

The probability of randomly choosing a blue tile is 7/50 = 14%

Hey there, Guest!

As crazy as this might seem, this question is actually just division.

2625/25

See?

Now we need to solve it:

And then, BAM, there you have it, 25 is our answer.

Hope this helped! :)

( ﾟдﾟ)つ Bye

https://web2.0calc.com/questions/pls-help_31756#r3

Previous answer is incorrect.

It is a 30 60 90 triangle as described, but the short side of the triangle opposite the 30° angle is the length of the shadow, or 39".

Naomi is the long side of the triangle opposite the 60° angle.  Therefore her height as a function of the length of the shadow is:

\(height = shadow \sqrt 3\)

\(height = 39 \sqrt3 \approx 67.5\)

Rounding the above to the nearest inch makes Naomi 68 inches tall, or 5 ft. 8".

The length of the path is pi/2 + 2.

You're supposed to actually subtract A from B, not vice versa, but ok

Revwriting the previous answer:

\(-n^2 + 22n - 21 = -(n^2 - 22n + 21) = - (n-21)(n-1)\)

For the above to be non-negative, as stated in the previous solution:

\(1 \le n \le 21\)

Therefore we are starting with a possibility of 21 integers.

From the previous answer, the following was derived:

\(0 \le n^2 - 20n + 51\)

Factoring this yields:

\(0 \le (n-3)(n-17)\)

For this to be true:

\(3 \le n \le 17\)

The number of integers satisfying this is 15.