At a restaurant the cost for a breakfast taco and a small glass of milk is $2.10. The cost for 2 tacos and 3 small glasses of milk is $5.15. Which pair of equations can be used to determine t, the cost of a taco, and m, the cost of a small glass of milk?

taco = $1.15

small glass of milk = $0.95

Step-by-step explanation:

t = taco

m = small glass of milk

t + m = $2.10

2t + 3m = $5.15

(2t + 3m) - (t + m) = t + 2m

$5.15 - $2.10 = $3.05

t + 2m = $3.05

(t + 2m) - (t + m) = m

$3.05 - $2.10 = $0.95

m = $0.95

t + $0.95 = $2.10

$2.10 - $0.95 = £1.15

t = $1.15

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x