Answer:
A Fraction
Step-by-step explanation:
33/3 is a fraction because it consists of a numerator and a denominator.
.2 or 2/10 If you do 3/4 of the 4/5, you get .6 or 6/10. With that, you can do 1/3 of .6 or 6/10 which equals .2 or 2/10
Do 33-15 then divide by -6 and you should get your answer
Answer:
66/125
Step-by-step explanation:
Divide top ad bottom by 8. The resulting fraction cannot be simplified further.
Answer:
15.

16. 10 ml of 20% saline and 40 ml of 10% saline
Step-by-step explanation:
A chemist takes x ml of 20% saline and y ml of 10% saline. In total, he takes
x + y ml that is 50 ml, so

There are
ml of salt in x ml of 20% saline and
ml of salt in 10% saline. There are
ml of salt in 50 ml of 12% saline. Thus,

15. We get the system of two equations:

16. Solve this system. From the first equation:

Substitute it into the second equation:
