Answer:
The volume of the solution with 20% acid is 27 gallons and the one with 10% acid is 18 gallons
Step-by-step explanation:
Myra needs to mix "x" gallons of the solution with 20% and "y" gallons of the solution with 10%. The volume of the final solution must be 45 gallons, therefore:
x + y = 45
The concentration of acid of the final solution is:
0.2*x + 0.1*y = 45*0.16
0.2*x + 0.1*y = 7.2
Therefore we have a system of equation:
x + y = 45
0.2*x + 0.1*y = 7.2
We need to multiply the first equation by -0.1:
-0.1*x -0.1*y = -4.5
0.2*x + 0.1*y = 7.2
We now sum both equation:
0.1*x = 2.7
x = 2.7/0.1 = 27 gallons
y = 45 - 27 = 18 gallons
Answer:
Step-by-step explanation:
263
273
237
267
627
623
673
637
327
367
763
723
I dunno anymore. 12
Answer:
<h2>There are 664 diet soda</h2>
Step-by-step explanation:
Step one:
given data
total soda= 913
we are told that the ratio of diet sodas to regular sodas is 8:3
this means that for every 8 diet soda there is 3 regular soda
the total ratio is 8+3=11
Step two:
we are going to use part to all principle
let the diet soda be x
8/11=x/913
cross multiply
11x=913*8
divide both sides by 11
x=913*8/11
x=7304/11
x=664
There are 664 diet soda
