2. Malia can finish a report in 2 hours. Marina can finish the same report in 4 hours. How long will it
take them to finish the report if they work together?​


Sagot :

Answer:

1.33 Hours

Step-by-step explanation:

[tex] \\ \tt{} \frac{x}{2} + \frac{x}{4} = 1[/tex]

LCD is 4. Multiply all the terms by the LCD.

[tex]\\ \tt{}4 \bigg( \frac{x}{2} + \frac{x}{4} = 1 \bigg)[/tex]

[tex]\\ \tt{} \frac{4x}{2} + \frac{4x}{4} = 4[/tex]

[tex]\\ \tt{}2x + x = 4[/tex]

[tex]\\ \tt{}3x = 4[/tex]

[tex]\\ \tt{}x = \frac{4}{3} [/tex]

[tex]\\ \boxed{ \huge \boxed{ \tt{}x = 1.33}} \\ \\ \\ \\ [/tex]

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