A craft store sells solid beads at 10$ per pound and marble beads at $15 per pound. The store wants to sell the mixture for $12 per pound. How many pounds of each variety should they use?

93.8

step-by-step explanation:

lets say, first number = x

second number = 3x+7

total = 49

(x)+(3x+7)= 49

4x+7 = 49

4x = 42

x = 42/4

x= 10.5

x= 10.5

3x+7 = 3(10.5)+7 = 93.8

hope this

3

step-by-step explanation:

tip $2.90

total $17.40