a farmer has cream witch is 21% butter fat and some which is 15% butter fat. how many gallons of each must be mixed to produce 60 gallons of cream which is 19% butter fat

What is the value of the expression below? 148+(-6)| + |– 35= 7|

[15 points, algebra 2]simplify the complex fraction and find the restrictions.

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?