Isuck at story problems can i have ?

a.

b=cost per burrioto

t=cost per taco

b.

3 burritos and 4 tacos costs 11.33; 3b+4t=11.33

9 burritos and 4 tacos costs 22.07; 9b+4t=22.07

c. solve

3b+4t=11.33

9b+4t=22.07

mulitply irst equation by -1 and add to 2nd to cancel t's

-3b-4t=-11.33

9b+4t=22.07 +

6b+0t=10.74

6b=10.74

divide both sides by 6

b=1.79

subsitute back

3b+4t=11.33

3(1.79)+4t=11.33

5.37+4t=11.33

4t=5.96

divide both sides by 4

t=1.49

solution: 1 taco costs $1.49 and 1 burrito costs $1.79

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2

300pi

step-by-step explanation: