Answer:
B. two
explanation:
i took the test
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Answer:
he has 11 dimes and 15 nickels
Step-by-step explanation:
i kept going down reducing the amount of dimes and adding to the amount of nickels and found that 11 dimes is $1.10 and 15 nickels is $0.75
Answer:
72 liters of 35% acid solution and 8 liters of 85% acid solution
Step-by-step explanation:
This is a very simple mixture problem.
We let the number of liters of 35% acid solution be "x"
and
let the number of liters of 85% acid solution be "y"
Now,
we can say:
0.35x + 0.85y = 0.4(80) [we have followed "Percentage*amount" ]
Also, we know two solution amount would be 80 liters, thus we can say:
x + y = 80
or x = 80 - y
Now we substitute this into 1st equation and solve for y first. Shown below:
Thus, x = 80 - 8 = 72
So we use 72 liters of 35% acid solution and 8 liters of 85% acid solution
Answer:
the second one
Step-by-step explanation: