John spent 2.4 hours working on the project.
Step-by-step explanation:
Let,
Number of hours worked by Dawn = x
Number of hours worked by Keith = y
Number of hours worked by John = z
According to given statement;
Dawn spent 1.2 hours less than 6 times as many hours on the project as John did.
x = 6z-1.2 Eqn 1
y = 5z+1.2 Eqn 2
As Dawn and Keith worked same amount, therefore,
Eqn 1 = Eqn 2
![6z-1.2=5z+1.2\\6z-5z=1.2+1.2\\z=2.4](https://tex.z-dn.net/?f=6z-1.2%3D5z%2B1.2%5C%5C6z-5z%3D1.2%2B1.2%5C%5Cz%3D2.4)
John spent 2.4 hours working on the project.
Keywords: linear equations, addition
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n: d = 27 because 27 minus 4 equals 23
Answer:
i think it is 43
Step-by-step explanation:
Step-by-step explanation:
I'm going to assume you mean
which can be rewritten as
since if you start with
since when you do (10^x)^c you're just multiplying the exponent which is represented by the x but is equal to the log you just multiply the log which is why you can bring it in front.
You can then approximate the value of log(5) using a calculator and multiply by 125 to get around 87.371