1) John has 20 liters salt-water solution. It contains 30% salt. How much salt should he add to make it a 50% solution

2)A man spent 1/6 of his salary. Then he spent 3/7 of the rest. If he has 1600 liras more money in his wallet, then find the amount of his salary.

:))

step-by-step explanation:

ask goog great chance of finding the solution there

900 degrees

step-by-step explanation:

table 3 represents a direct variation function. : )

irrational, then, just means all the numbers that aren't rational. every integer is a rational number, since each integer n can be written in the form n/1. however, numbers like 1/2, 45454737/2424242, and -3/7 are also rational, since they are fractions whose numerator and denominator are integers.

step-by-step explanation: