2a+1b=27.50
4a+2b=59.50
Multiply first equation by -4 and the second by 2 so you can drop off the a values then add the equations together. Then solve for b. You should get b=6.
Then plug b into one of the original equations and solve for a and you should get 10.75
So a plate of spaghetti is $10.75 and a salad is $6.
<em><u>Please mark brainliest!</u></em>
Answer:
105
Step-by-step explanation:
Answer:
The first choice
Step-by-step explanation:
Perpendicular lines intersect to form right angles, like the x- and y-axis on a coordinate plane.
30 just multiply 15 times 2 your welcome
Answer:
Step-by-step explanation:
1.65
Things how much there worth
Hope it helps
