Answer:
Step-by-step explanation:
let X be the quantity of 100% acid
let Y be the quantity of 10% acid
X + Y = 90
Y = 90 - X
X(100) + Y(10) = 90(81)
X(100) + (90 - X)(10) = 90(81)
100X + 900 - 10X = 7290
90X = 6390
X = 71 L
Answer:
80 is the volume
Step-by-step explanation:
l*b*h
5*2*8
80
Convert the mixed numbers into improper fractions...
-19/3 - (-13/3)
The LCD is 9
-19/9 + 13 * 3/9
-19 + 3 * 13/9
20/9
to mixed number is 2 2/9
Answer is A
1. x - 16
2. x + 5
3. x divided by 48 (I don’t have the division symbol.)
It would be helpful to see a picture, but if you are just trying to solve for X. The answer would be 6.
