A geologist found two underground wells that contained large deposits of water. The first well was 46 2/3 meters below the surface. The second well had more water, and was 77 5/6 meters deeper than the first well. How deep below the surface was the second well?

Respuesta :

Answer:

Second well was  [tex]103 \frac{3}{6}\ m[/tex] deep below the surface.

Step-by-step explanation:

Given:

Depth of First well = [tex]46\frac{2}{3}\ m[/tex]

[tex]46\frac{2}{3}\ m[/tex] can be Rewritten as [tex]\frac{140}{3}\ m[/tex]

Depth of First well = [tex]\frac{140}{3}\ m[/tex]

Also Given:

The second well had more water, and was [tex]77\frac{5}{6}\ m[/tex]  deeper than the first well.

[tex]77\frac{5}{6}\ m[/tex] can be Rewritten as [tex]\frac{467}{6}\ m[/tex]

Hence We can say that;

Depth of second well is equal to  [tex]\frac{467}{6}\ m[/tex] plus Depth of First well.

framing in equation form we get;

Depth of second well = [tex]\frac{467}{6}+\frac{77}{3}[/tex]

Now the denominators are common so we can solve the numerators

now to solve the fractions we need to make the denominator common we will use L.C.M we get;

Depth of second well = [tex]\frac{467\times1}{6\times1}+\frac{77\times2}{3\times2}= \frac{467}{6}+\frac{154}{6}[/tex]

Now the denominators are common so we can solve the numerators.

Depth of second well = [tex]\frac{467+154}{6}=\frac{621}{6}\ m \ \ OR\ \ 103 \frac{3}{6}\ m[/tex]

Hence Second well was [tex]103 \frac{3}{6}\ m[/tex] deep below the surface.

Otras preguntas