A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is
55% salt and Solution B is 80% salt. She wants to obtain 130 ounces of a mixture that is 75% salt. How many ounces of each solution should she use?
1 answer:
Answer:
- 26 ounces of 55% solution
- 104 ounces of 80% solution
Step-by-step explanation:
Let x represent the quantity of 80% solution. Then 130-x is the amount of 55% solution. The total amount of salt in the mix is ...
0.80x +0.55(130 -x) = 0.75·130
0.25x = 0.20·130 . . . . . . . subtract 0.55(130)
x = 0.20/0.25(130) = 104
130-x = 26
She should use 26 ounces of 55% solution and 104 ounces of 80% solution.
You might be interested in
Answer:
3x+9 < - 42
Step-by-step explanation:
Answer:
(-3, -5) This is my answer I hope it helps
Answer:
x=11/5, or x=2.2.
Step-by-step explanation:
9-3(x+4)=2(x-3)-8
9-3x-12=2x-6-8
9-12-3x=2x-14
-3-3x=2x-14
-3-3x-2x=-14
-3-5x=-14
5x=-3-(-14)
5x=-3+14
5x=11
x=11/5
x=2.2
7 because a(one side)= 1/sqrt2 * hypotenuse (7*sqrt2) THis equals 7
Answer:
B.) I think it is B because sunlight is renewable, so is corn and sugarcane. Which leaves the odd one out.