Answer:
232/25.
Step-by-step explanation:
Let's put it this way.
It's a ratio of 6:72 and we need to change it in a way to find number of rooms cleaned in 9 days.
Divide 6 & 72 both by 2
Ratio is now 3:36
Multiply 3 & 36 both by 3
Ratio is now 9:108
The number of rooms in which Robin can clean in 9 days is 108 rooms.
Answer:
54minutes
Step-by-step explanation:
Let the time taken to clean up be t
Let the number of people cleaning be n
If the time it takes to clean up after an anniversary party varies inversely as the number of people cleaning then;
t = k/n
k is the constant of proportionality
If 3 people work together to clean, and took them 90 minutes, this means
at t = 90, n=3
Substitute
90 = k/3
k = 3×90
k = 270
To et the time it will take 5people to clean, the will say;
t =k/n
t =270/5
t = 54 minutes
Hence it will take 5 people 54minues to clean
Answer:
The slope would be: -2
Step-by-step explanation:
To find the slope of these two points:
(0,4) and (3,-2)
You would have to use the formula of slope to find it.
The slope formula is:
<h2><u>y₂ - y₁ </u></h2><h2>X₂ - X₁ </h2>
So subsitute in Those two points
(0,4) would be your (x₁ , y₁)
(3,-2) would be your (x₂ , y₂)
So your formula witht he subsituted #'s in it would look like:
<h2><u>-2 - 4</u></h2><h2>3 - 2</h2>
Your answer would be:
<h2><u>-6</u></h2><h2> 3</h2>
Simplified, it is -2
<h3>So your slope is -2</h3>
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