Answer:
Yes, -4 is valid.
Step-by-step explanation:
Lets Find out.
So, using substitution:
Yes, -4 is a valid solution.
Hope This Helps!
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You combine like terms.
-6x - 3 + 7x = -7
+3 +3
-6x + 7x = -4
-6x + 7x
x = -4
There are 60 minutes in an hour, so 1 hour is equal to 60 minutes.
Hope that helped =)
We know that she has 245, which is 70% of the total. Which can be written as 70/100. We know that 245 is that same percentage of an unknown value.
We can say then,
We need to cross multiply
If we solve for x we get,