Answer:
am i a light switch? because you turn me on.
Step-by-step explanation:
(25 - 10.81) - 1.38p = 10
p = package of peanuts
25 - 10.81 = 14.19
14.19 - 1.38p = 10
Subtract 14.19 from each side
10 - 14.19 = -4.19
-1.38p = -4.19
Divide both sides by -1.38
p = 3 (roughly, but because you can only buy the whole package, this is the amount you can buy)
He can buy a maximum of 3 packages of peanuts.
Sam used 6 loaves of elf bread???
1.
12 liters of 26% acid solution contain

liters of acid.
x liters of 40% acid solution contain

liters of acid.
The third solution is made from the two mixed solution so its volume is

, and the volume of acid in it is

. Its concentration is 33% or 0.33.
The concentration of a solution is the volume of the solution divide by the volume of acid in it.

The answer is B.
2.
12 liters of 16% acid solution contain

liters of acid.
x liters of 40% acid solution contain

liters of acid.
The volume of the third solution is

, and the volume of acid in it is

. Its concentration is 32% or 0.32.

The answer is B.
3.
16 liters of 18% acidsolution contain

liters of acid.
x liters of 27% acid solution contain

liters of acid.
The volume of the third solution is

, and the volume of acid in it is

. Its concentration is 21% or 0.21.

The answer is A.