Help please! :)
The answer would be C right?

Four ounces of a 20% salt solution is mixed with 6 ounces of a 15% salt solution. What is the percent of salt in the new solution?

A. 17%

B. 17.5%

C. 35%

D. 85%

Question

Help please! :) 
The answer would be C right?

Four ounces of a 20% salt solution is mixed with 6 ounces of a 15% salt solution. What is the percent of salt in the new solution?

A. 17%

B. 17.5%

C. 35%

D. 85%

anonymous · Answer

b

mathstudent55 · Answer

Let's calculate it.

anonymous · Answer

A

mathstudent55 · Answer

4 ounces of 20% salt solution contains how much salt?

anonymous · Answer

I meant a, sorry

mathstudent55 · Answer

4 * 0.2 = 0.8
That means 0.8 ounces of salt.

anonymous · Answer

yeah

mathstudent55 · Answer

6 ounces of 15% salt solution contain
6 * 0.15 = 0.9 ounces of salt.

anonymous · Answer

4 x 20% = .8
6 x 15% = .9

10 (total weight ) x 1.7

mathstudent55 · Answer

Now add the two amounts of salt:
0.8 + 0.9 = 1.7 ounces of salt.

mathstudent55 · Answer

Since you have 4 ounces of one solution and 6 ounces of the other solution, the total amount of solution is
4 + 6 = 10 ounces.

1.7 ounces of salt in 10 ounces of solution is
1.7/10 * 100 = 17%

mathstudent55 · Answer

The answer is A. 17%

anonymous · Answer

Thanks! :)

mathstudent55 · Answer

You're welcome.

anonymous · Answer

what's a smart score? i'm new to open study

mathstudent55 · Answer

Click on a person's name and look at the person's detailed profile.