Answer: he has 128 + d
Step-by-step explanation:
well if he had 128 yesterday and today he got d more just add d to 128 and ull see
for example, lets say d = 16
to find out the total we woukd have to add 16 to 128 (just an example the answer is not d=16)
answer= 128+d
9/7 as a <span>mixed number is 1 2/7</span>
Answer:
1,800.96 Square Yards I think? If I'm wrong I'm sorry :(
Step-by-step explanation:
Step-by-step explanation:
-7 2/3+(-5 1/2)+ 8 3/4
-13 1/6+ 8 3/4
-4 5/12
Answer: -4 5/12
X = amount of the 18% solution
y = amount of the 40% solution
we know the 18% solution has only 18% of alcohol, the rest is maybe water or something, now, how many liters is 18%? well, 18% of anything is just (18/100) * anything, so, 18% of x is just (18/100) *x or 0.18x, and that's how many liters are there.
likewise, how many liters are there in the 40% solution? well, (40/100) * y, or 0.4y, that many.
we know the mixture has to yield 10 liters at 20% alcohol, how many liters of only alcohol is that? well, (20/100) * 10, or 2 liters.
how much of the 40% solution? well y = 10 - x