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>Well, they couldnt have studied negative time.. So Id say the domain is \(x \ge 0\) where \(x\) is the time they studied.</span>
Answer:
x = 6
Step-by-step explanation:
Line M and line V are parallel so,
Given angles must be alternate angles and alternate angles has equal measurement
so we write an equation to find the value of x:
19x - 4 = 110 add 4 to both sides
19x = 114 divide both sides by 19
x = 6
X = number of loads
company A : 20x + 8
company B : 24x + 4
20x + 8 = 20(5) + 8 = 100 + 8 = 108 (company A)
24x + 4 = 24(5) + 4 = 120 + 4 = 124 (company B)
company A charges less
20x + 8 = 20(9) + 8 = 188
24x + 4 = 24(9) + 4 = 220
220 - 188 = $ 32 bucks is saved by using company A
A. -3,1
B. -6,1
C. -4,1.6
D. -6,4
It lies in the second quadrant.
First quadrant top right
Second quadrant top left
Third quadrant bottom left
Fourth quadrant bottom right.
