Answer:

Step-by-step explanation:
Hi!
So let's write the equation again

The next step is to plug in known values:

Now we solve this as a normal algebra equation:
Do same to both sides


I hope this helped. Let me know if you have any questions
Answer:
24/35
Step-by-step explanation:
Hope this helps!:)
Answer:
23% of Michael's rock collection is metamorphic rock.
Step-by-step explanation:
We are given the following in the question:
Percentage of igneous rock in the collection = 27%
Percentage of sedimentary rock in the collection = 50%
Remaining rocks are metamorphic rock.
Total collection = 100%
Percentage of metamorphic rocks =

Thus, 23% of Michael's rock collection is metamorphic rock.
Answer:
n =-19
Step-by-step explanation:
3* (n+7) = -36
Distribute
3n+21 = -36
Subtract 21 from each side
3n+21-21 = -36-21
3n = -57
Divide by 3
3n/3 = -57/3
n =-19
Answer:
20
Step-by-step explanation: