Answer:

Step-by-step explanation:
GIVEN: You have one type of nut that sells for
and another type of nut that sells for
. You would like to have
of a nut mixture that sells for
TO FIND: How much of each nut will you need to obtain the desired mixture.
SOLUTION:
Rate of first type of nut
Rate of second type of nuts 
Total amount of nut mixture 
let the total quantity of first type of nut be 
quantity of second type of nuts 
Now,
rate of new nut mixture 
rate of new mixture
putting values



quantity of first type of nuts 
quantity of second type of nuts 
Hence
of first type of nuts and
of second type of nuts are required to obtain the desired mixture.