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>
<span>The answer is B) linear.
Explanation:
This equation is in slope-intercept form, which is y=mx+b. It has a constant rate of change, m=3, which tells us that for every increase in x, there is a constant increase in 1. This is what makes it linear.</span>
Answer:
6 1.5/4
Step-by-step explanation:
Answer:
Step-by-step explanation:
Longer side =18
side opposite to 30=18/2=9
third side=√(18²-9²)=9√3
525 divide 35 = 1515 times 1.38= 20.70 dollars