Answer:
1x+ 1y =11
10x + 5y = 80
x = the cost of a taco = $5
y = the cost of a burrito = $6
Step-by-step explanation:
x = the cost of a taco
y = the cost of a burrito
1x+ 1y =11
10x + 5y = 80
rearange 1st equation as y = 11 -x and plug in into the 2nd one for y:
10x + 5( 11-x) = 80 distribute left side
10x + 55 - 5x = 80 combine like terms
10x - 5x = 5x
5x + 55 = 80 subtract 55 from both sides
5x = 80 - 55
5x = 25 divide by 5
x = 5
plug in for y in 1st equation y = 11--x =11-5 = 6
Answer:
b. 
Step-by-step explanation:
We have that the server's salary can be expressed as

Counting the $ 1700 dollars as the fixed amount of your salary and contemplating the variable salary that would be $ 10 * t being t the number of overtime worked
from this expression we can clear the number of overtime worked by clearing t, so I finally have

Done
Answer:
15
Step-by-step explanation:
If each necklace takes 30 beads, she can make 15 necklaces until she runs out of beads. 450÷30=15. Hope this helps!
Answer:
x=0, x= (9+i square root35)/2, x= (9-i square root 35)/2
Step-by-step explanation:
The answer to letter A is 9/25. I'm not sure what letter B is, sorry. :/