Answer:
7.2 liters
Step-by-step explanation:
Find how many liters of the solution is bleach:
14% of 18 liters
= 0.14 × 18
= 2.52 liters
If the amount of bleach in the solution should be 10% then:
⇒ 10% = 2.52 liters
⇒ 100% = 2.52 × 10 = 25.2 liters
To find the amount of water that should be added, subtract the original volume of solution from the new volume of solution:
⇒ 25.2 - 18 = 7.2 liters
Therefore, 7.2 liters of water should be added to 18 liters of a 14% bleach solution so that the resulting solution contains only 10% bleach.
Answer:
x=12, but if x2 is an exponent, x=1+ the square root of 17.
Step-by-step explanation:
Answer:
the answer is 28.23
Step-by-step explanation:
just subtract them to know the difference between the estimate and the actual
Step-by-step explanation:
For question 30, the first choice is not necessarily true. I attached a picture of what *could* be the parallelogram.
The first choice is true ONLY if the parallelogram is a square.
The second choice is not necessarily true either. It is true ONLY if the parallelogram is a rhombus (a square is also a rhombus, just for reference)
But opposite sides of a parallelogram are always equal
So the answer to question 30 are the first and second choices.
For question 31:
remember what I said about how opposite sides of a parallelogram are always equal? Well opposite angles are also always equal.
So angle BKX = angle BWX = angle XWB = 114 degrees
Angle BKW = angle XWK (using parallel lines) = angle XWB - angle BWK = 114 - 22 = 92 degrees
Angle WBX = angle BXK (using parallel lines too) = angle WXK - angle WXB.
Consecutive angles in a parallelogram add up to 180. So angle WXK + angle XWK = 180. angle WXK = 180 - angle XWK = 180 - 114 = 66 degrees.
angle WDB + angle WBX + angle BWK = 180 because it's a triangle
angle WDB + 66 (just figured it out) + 22 (given) = 180 degrees
angle WDB = 180 - 66 - 22 = 92 degrees
I hope I didn't do anything wrong lol
but I prolly did XD
Answer:
70,523
Step-by-step explanation:
This is standard form there no way to show.
