Answer:
<em>Rajan must use </em><em>0.75</em><em> liters of 5% hydrochloric acid solution and </em><em>0.25</em><em> liters of 45% hydrochloric acid solution.</em>
Step-by-step explanation:
Let us assume that, x liters of the 5% hydrochloric acid and y liters of the 45% hydrochloric acid solutions are combined.
As Rajan need total of 1 liter of solution, so
i.e
--------------------1
As Rajan needs 5% hydrochloric acid and 45% hydrochloric acid to make a 1 liter batch of 15% hydrochloric acid, hence acid content of the mixture of two acids will be same as of the final one, so

i.e
-------------2
Putting value of x from equation 1 in equation 2,





Putting the value of y in equation 1,

Therefore, Rajan must use 0.75 liters of 5% hydrochloric acid solution and 0.25 liters of 45% hydrochloric acid solution.
Answer:
5 + 7
Step-by-step explanation:
3 + 2 = 5, 4 + 3 = 7
All but the first should be linear. Im questionable about the last one but the other 2
should definitely be linear
Answer:
$9.66 isb15% of $64.40
Step-by-step explanation:
64.40×15%
Answer:
i can't help with this specific queshtion but i do have tow say to things 1. when you post something like this make sure to crop out anything that people can see your info or anything like block out the tabs someone could see that and use it for evil be careful with this, second i do aleks to.
Step-by-step explanation:
im sorry i could not help you in the way you wanted but i hop you will be safe now!
dont make me brainlyest i dont deserve it i did not give you you answer
Have a nice day!