Ashley's coffee shop makes a blend that is a mixture of two types of coffee. type a coffee costs ashley $4.65 per pound, and type b coffee costs $5.95 per
pound. this month, ashley made 120 pounds of the blend, for a total cost of $623.00. how many pounds of type b coffee did she use?

39 lbs

Step-by-step explanation:

Let x = the number of lbs of Type A coffee.

We know that this month's blend used 3 times as many pounds of type B coffee as type A coffee.

Total lbs of coffee =  x + 3x

The total cost then is:

($ cost for Type A)(x) + ($ cost for Type B)(3x) = $717.60

$5.65x + $4.25(3x) = $717.60

$5.65x + $12.75x = $717.60

$18.40x = $717.60

x = 39 lbs

yes

step-by-step explanation:

so of course you want to start by plugging the 5 in which goes to 7(5)+3(5)=50 because 7*5=35 and 3*5=15 and then add them together, then plug in the 5 to the other equation as well 9(5)+5=50 because 9*5= 45 and then add 5 and so yes they are equivalent.