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Mathematics 19 Online
OpenStudy (anonymous):

Lance can paint the room in 5 hours, while Kim can paint the same room in 4 hours. How many hours would it take for them to paint the room together?

OpenStudy (anonymous):

the fractions are 1/5 and 1/4..

OpenStudy (anonymous):

9/20 you just add them and then turn it into a number

OpenStudy (anonymous):

can i haz medal?

OpenStudy (anonymous):

All you do is add? o.o I could've done that... I thought there was mroe to it

OpenStudy (anonymous):

YAYAYAYAYAYAYAAYAAYAYAYAYAYAYAYYAYAYAYAYAYAYAYAAYAYAA IM A MERMAN!

OpenStudy (anonymous):

Don't spam my question....?

OpenStudy (anonymous):

im sorry :(

OpenStudy (anonymous):

Youre such a buzzkill I was celebrating my medal

OpenStudy (anonymous):

Dominique can ice cupcakes twice as fast as Houston. When they work together, Dominique and Houston can ice a large order of cupcakes in 5 hours. How many hours would it take Houston to ice them by himself? is this the same?

OpenStudy (anonymous):

kind of

OpenStudy (anonymous):

would it be, like, 1? or something? or is it some of improper fraction

OpenStudy (anonymous):

but it would most likely just be dividing so maybe each 2.5 hours if thats a choice

OpenStudy (anonymous):

nope..

OpenStudy (anonymous):

you there? .-

OpenStudy (anonymous):

@Ineedhelpthankyou

OpenStudy (anonymous):

@Ineedhelpthankyou

OpenStudy (anonymous):

oh im back sorry

OpenStudy (anonymous):

Ineedhelpthankyou is completely wrong. Speaking that it has been a month, I'm sure you've already turned the assignment in. However, I just wanted you to know the REAL way to do it. So....you have to set the fractions up. For the first problem, since it is only 1 room they are painting, you would put 1 as both numerators. Then, you would put 5 for one denominator and 4 for the other denominator because you always put time on the denominator. Next, you have to get the denominators the same. The LCD (lowest common denominator) is 20. Therefore, multiply the numerator and denominator in the first fraction by 5 and then the numerator and denominator on the second fraction by 4. Our fractions will look like....

OpenStudy (anonymous):

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