David's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs David $4.10 per pound, and type B coffee costs $5.25 per pound. This month's blend used twice as many pounds of type B coffee as type A, for a total cost of $423.40. How many pounds of type A coffee were used?

29 pounds of type A coffee was used

Step-by-step explanation:

David's shop makes a blend that is a mixture of 2 coffee

Type A costs $4.10

Type B costs $5.25

Let a represent the number of pounds of type A coffee used

Since this month's blend used twice as many pound of type B coffee as type A

a + 2a

The total cost is $423.40

Therefore the amount of pounds of type A coffee used can be calculated as follows

4.10a + 5.25(2a)= 423.40

4.10a + 10.5a= 423.40

14.6a= 423.40

a= 423.40/14.6

a= 29

Hence 29 pounds of type A coffee was used

i pretty sure it is

i believe the correct answer is option 4.principalities were small territories that were run by russian rulers.

which statement correctly defines principalities in northern asia in the 1200s? principalities were small territories that were run by russian rulers.

hope i could ! : )