A group of students takes their math teacher out for lunch. If five have hamburgers and four have hotdogs the bull will be 19.50.If four have hamburgers and five have hot dogs the bull wil be 18.75.What is the price of a hamburger and a hot dog?Show all work using systems of equations.

5/12, or 5: 12

step-by-step explanation:

the first one

step-by-step explanation:

just id the test.

i think the length is 12 and the width is 17

< xcy ≅ < xby

step-by-step explanation:

in δcax and δbax,

so, δcax ≅ δbax (side-angle-side or sas)

since δcax ≅ δbax, we can conclude < acx ≅ < abx

in δacy and δaby,

so, δacy ≅ δaby (side-angle-side or sas)

since δacy ≅ δaby, we can conclude < acy ≅ < aby

now,

< acy ≅ < aby

=> < acx + < xcy ≅ < abx + < xby

=> < acx + < xcy ≅ < acx + < xby   (since < acx ≅ < abx already proved above)

subtracting < acx from both sides, we get

< acx + < xcy -< acx ≅ < acx + < xby -< acx

cancelling out < acx and -< acx from both sides, we get

< xcy ≅ < xby (proved)