Posted by chandler on .
A science teacher has a supply of 50% sugar solution and a supply of 80% sugar solution. How much of each solution should the teacher mix together to get 105 ML of 60% sugar solution for an experiment
70 ML of the 50% solution and 35 ML of the 80% solution
35 ML of the 50% solution and 70 ML of the 80% solution
70 ML of the 50% solution and 70 ML of the 80% solution
35 ML of the 50% solution and 35 ML of the 80% solution

math 
Steve,
.5x+.8(105x)=.6*105
x = x=70
so, (a)
Even without doing the calculation, this can be easily solved.
Since 60% is closer to 50% than it is to 80%, more of the lower concentration will be needed. 
math 
That Girl,
what was the answer?

math 
blahblah,
Hey that girl I am working on that test now can you help me?

math 
blahblah,
never mind

math 
Anonymous,
The answers for the whole thing is
1.D
2.A
3.C
4.D
5.C
6.D
7.A
8.C
9.A
10.B
11.A
12.A
13.A
14.B
15.A
16.B
17.A
18.A
19.B
20.C
21.A
22.A
23.D
24.B 
math 
UNKNOWN,
these is the wrong answers for connections acadamey

math 
Glad To Help,
THESE ARE ALL WRONG DON'T LISTEN TO HIM!

lexi's bestie 
real answers:,
hey guys here is the real answers, I'm sorry if they change any questions:
1. A [1.4, 2.2]
2. D [2, 9.5]
3. C [infinitely many]
4. D [none]
5. C [infinitely many]
6. D [none]
7. C
8. D
9. A [y≥60; 2x+2y≤260]
10. B [4 days]
11. A [$0.50 per cookie; $1.25 per brownie]
12. A
13. A
14. B [1.5, 10]
15. D [5,1]
16. B [750 TShirts
17. B [16 quarts...]
18. B [44 mL]
19. C
20. A
21. A [5x+7y≥140]
22. A
23. A
24. D 
math 
Anonymous,
lexi's bestie are those answers for connections academy ??

math 
Anonymous,
lexi's bestie are those answers for connections academy ??

math 
lexi's bestie,
yes it's the unit test. Xx