Question

leticia spent $11.19 on a bag of blue and red candy and the bag weighed 11 pounds if the red candy coast $1.29 per pound and the blue candy coast $0.79 per pound how much of each candy did she buy ?

Answer 1

Step-by-step explanation:

x- red candy

y- blue candy

x + y = 11

1.29x + .79y = 11.19

129x +79y = 1119

-129x -129y = -1419

-50y = -300

y = 6 lbs. blue

x + 6 = 11

x = 5 lbs. red

Answer 2

Answer:

[b, r] → [$5, $6]

Step-by-step explanation:

{11 = r + b

{11,19 = 1,29r + 0,79b

-1,2658227848[11,19 = 1,29r + 0,79b]

{11 = r + b

{-14,164556962 = -1,6329113924r - b

________________________________________

-3,164556962 = -1,6329113924r

______________ ________________

-1,6329113924 -1,6329113924

6 ≈ r [Plug this back into both equations to get an approximate b-value of 5]; 5 ≈ b

I hope this helps you out alot, and as always, I am joyous to assist anyone at any time.