8 litres (amount of 20% solution needed) and 7 litres for (amount of 50% solution needed)
<u>Step-by-step explanation:</u>
Let consider ‘x’ for 20% acid solution and (15 – x) for 50% acid solution. And so, the equation would be as below,
20% in x + 50% in (15 – x) = 15 litres of 34%
Convert percentage values, we get
0.20(x) + 0.50 (15 – x) = 15 (0.34)
0.20 x + 7.5 – 0.50 x = 5.1
-0.3 x + 7.5 = 5.1
0.3 x = 7.5 – 5.1
0.3 x = 2.4

Apply ‘x = 8’ value in (15 – x) we get,
15 – 8 = 7 litres
The value of 7 litres for (amount of 50% solution needed)
X and y vary directily means
y=kx
72=3k
divide both sides by 3
24=k
k=24
y=72
Answer:
Kade
Step-by-step explanation:
.53 is bigger than .52
Answer:
Exact Form: 391
/12
Decimal Form: 32.58
3 (3 is continued)
Mixed Number Form: 32 7/12
Step-by-step explanation: You evaluate and multiply the equation.
Answer:
Im pretty sure its D A B
Step-by-step explanation:
I am learning about this