Answer:
The answer would be A.
Step-by-step explanation:
5 (-5)+ (2) = -23
-25 +2=-23
-23=-23!
The sentence "15% of 4x is 20 less than x"
translates to 0.15 • (4x) = x – 20
Solving that…
0.15(4x) = x - 20 multiplipy 0.15•4
0.6x = x - 20 subtract x from both sides
-0.4x = - 20 divide both sides by -0.4
x = 50
Answer:
466mEq
Step-by-step explanation:
First, we need to know the concentration of NaCl in a normal saline solution, this is by definition 0.9%, meaning we have 0.9g of NaCl per 100ml of solution, we want to know how much NaCl we have in 3L (3000ml):

So, we have 27000mg in 3L of normal saline solution.
Now, acording to our milliequivalent (mEq) equation (
) where pE is de molecular mass of NaCl divided by their charges, in this case 1:

Finally we substitute in the mEq formula:

I hope you find this information useful! Good luck!
Answer:
There was a markdown of $26.28 which is 20.53% off the original asking price.
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The answer is B... False. Tansellations that use only one type of regular polygon are not called semi-regular tessellations