Question

Eva created a coffee blend for her restaurant by mixing Kenya and French Roast coffee beans. The Kenya beans cost $15 per pound and the French Roast costs $8 per pound. She bought a total of 10 pounds of coffee for a total of $97.50.
How much of each type of bean did she buy?
Select one:
a. 2.5 lbs Kenya and 7.5 lbs French Roast
b. 1.5 lbs Kenya and 8.5 lbs French Roast
c. 4 lbs Kenya and 6 lbs French Roast
d. 3 lbs Kenya and 7 lbs French Roast

Answer 1

x=kenya beans pounds
y=french roasts pounds

x+y=10
15x+8y=97.50

solve system of equations.
y=10-x
15x+8(10-x)=97.50
7x+80=97.50
7x=17.5
x=2.5.
plug into y=10-x.
y=7.5.
Answer is A
2.5 lbs Kenya and 7.5 lbs French roast.

Answer 2

so how did you get 7x

Answer 3

Closest one to it

Answer 4

wait what

Answer 5

I got 7.5x not 7

Answer 6

wait nvm im confused ahah sorry x

Answer 7

oh thats ok but thnks