Answer:
3x +4y = 118
5x+6y =180
y= $25
Step-by-step explanation:
Let x = the cost of a flashlight
Let y = the cost of a sleeping bag
3x +4y = 118
5x+6y =180
Multiply the first equation by -5
-5(3x +4y) = -5*118
-15x -20y = -590
Multiply the second equation by 3
3(5x+6y) =3*180
15x + 18y = 540
Add the modified equations together.
We are using elimination to eliminate the variable x
-15x -20y = -590
15x + 18y = 540
----------------------------
-2y = -50
Divide by -2
-2y/-2 = -50/-2
y =25
Each sleeping bag costs $25
Answer:
D is the right answer right
Step-by-step explanation:
D
why does nobody talk to circles? :3
if B is the midpoint of AC, that means that B cuts AC in two equal halves, namely that AB and BC are identical twins.
![\bf \boxed{A}\stackrel{4x - 2}{\rule[0.35em]{10em}{0.25pt}} B\stackrel{2x+4}{\rule[0.35em]{10em}{0.25pt}}\boxed{C} \\\\\\ 4x - 2 = 2x + 4\implies 2x-2=4\implies 2x = 6\implies x=\cfrac{6}{2}\implies x = 3 \\\\[-0.35em] ~\dotfill\\\\ \stackrel{AB~=~BC}{4(3)-2= \underline{10}}~\hfill \stackrel{AC = AB+BC}{\underline{10}+\underline{10}=20}](https://tex.z-dn.net/?f=%5Cbf%20%5Cboxed%7BA%7D%5Cstackrel%7B4x%20-%202%7D%7B%5Crule%5B0.35em%5D%7B10em%7D%7B0.25pt%7D%7D%20B%5Cstackrel%7B2x%2B4%7D%7B%5Crule%5B0.35em%5D%7B10em%7D%7B0.25pt%7D%7D%5Cboxed%7BC%7D%20%5C%5C%5C%5C%5C%5C%204x%20-%202%20%3D%202x%20%2B%204%5Cimplies%202x-2%3D4%5Cimplies%202x%20%3D%206%5Cimplies%20x%3D%5Ccfrac%7B6%7D%7B2%7D%5Cimplies%20x%20%3D%203%20%5C%5C%5C%5C%5B-0.35em%5D%20~%5Cdotfill%5C%5C%5C%5C%20%5Cstackrel%7BAB~%3D~BC%7D%7B4%283%29-2%3D%20%5Cunderline%7B10%7D%7D~%5Chfill%20%5Cstackrel%7BAC%20%3D%20AB%2BBC%7D%7B%5Cunderline%7B10%7D%2B%5Cunderline%7B10%7D%3D20%7D)
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