The time it takes them working together to paint the room is 3.08 hours
<h3>Rational expression</h3>
Rational expression are equation written as a ratio of two expressions or equations.
If Wes can paint a certain room in 8 hours, she can paint 1/8 of the room in 1 hr
Similarly, if Sally can paint the same room in 5 hours, , she can paint 1/5 of the room in 1 hr
Determine the time it takes them to paint the room altogether.
Time together = x
Using the expression below to determine the value of x
1/x = 1/8 + 1/5
1/x = 5+8/40
1/x = 13/40
x = 40/13
x = 3.08
Hence the time it takes them working together to paint the room is 3.08 hours
Learn more on rational expression here; brainly.com/question/2264785
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Answer:
20.53 minutes
Step-by-step explanation:
Speed = Distance/Time = 30/7
Time = Distance / Speed
= 5280/30/7
= 1232 seconds / 60 = 20.53 minutes
Answered by Gauthmath
The anwer is B, hope this was helpful
For number 2, like i said in the comments, is 20 hours.
8/12*30
For number three, the answer is 38 Ibs on Mars.
4/10 = x/95
4*95/10= x
X= 380/10 which equals 38.
For 4, the answer is 48 oz of pineapple juice.
3 x 64/4 which equals to 48.
For 5, you will need 6 cups of flour.
Hope this helps & good luck. :)
300,000+40,000+5,000
Three hundred forty-five thousand
