## anonymous one year ago a coffee company wants a new flavor of Cajun coffee. how many pounds of coffee worth $9 a pound should be added to 30 pounds of coffee worth$3 a pound to get a mixture worth $7 a pound? • This Question is Closed 1. anonymous 2. anonymous not impossible though we need a variable for the number of pounds of$9 coffee needed you pick it

3. anonymous

um ... x

4. anonymous

ok fine

5. anonymous

and you already have 30 pounds of coffee worth $3 a pound for a total cost of $$3\times 30=90$$ 6. anonymous the $$x$$ pounds of coffee at$9 will cost $$9x$$ dollars for a total cost of $9x+90$dollars

7. anonymous

when you add your $$x$$ pounds of coffee to the 30 pounds of coffee you will have $$30+x$$ pounds of coffee that you want to be worth \$7 a pound set $9x+90=7(30+x)$ and solve for $$x$$

8. anonymous

correct

9. anonymous

x=60