How did they go from =-9/2(x+6) to =-9/2x-54/2 ???
2 answers:
Hi, I don't know if you still need the answer, but here you go:
Answer:
They used distributive property.
Step-by-step explanation:
They multiplied -9/2 times "x" and then, times "+6".
First, you get -9/2x for the first term in the parenthesis.
Second, you multiply -9/2 times 6 in the form of a fraction.
* When multiplying fractions, you multiply straight across so:
-9/2 × 6/1 = -54/2
Leaving you with:
-9/2x-54/2
The -54/2 simplifies into -27, which gives you:
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Answer:
1 hour and 42.8 minutes
Step-by-step explanation:
To answer this question let's call while it takes Jenna to clean the gutters
Let's call while it takes John to clean the gutters
h
h
t = total time
g = job = 1 (clean the gutters)
The speed of each one is:
g/ h
g/h
So:
h
Then, both together paint of gutters for each hour.
This means that it takes hours to clean the gutters together
Finally cleaning together takes 1,714 hours or also
1 hour and 42.8 minutes