45+ 70x=150
the answer is 1.5 so an hour and a half
Answer:
x ≤ 
Step-by-step explanation:
So first you would start by getting rid of the -4. To get rid of -4, you would need to + 4 on each side leaving you with -2x ≤ 15. Now you need to get rid of -2 from x so that would convert equation to x ≤
. Hoped it helped!
⭐ Answered by Foxzy0⭐
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Answer:
7200000
Step-by-step explanation:
Option c: x=6 is a true solution and x=-6 is an extraneous solution.
Explanation:
The equation is 
Dividing both sides of the equation by 2, we get,

Simplifying,

Since, we know by the logarithmic definition, if
, then 
Using this definition, we have,

Hence, 
Now, let us verify if
is the solution.
Substitute
in the equation
to see whether both sides of the equation are true.
We have,

Using the log rule, 
We have,

Hence, both sides of the equation are equal.
Thus,
is the true solution.
Answer:
x = -3/2, x = 4
Step-by-step explanation:
4x² - 7x = 3x + 24, first put everything on one side
4x² - 10x - 24 = 0, factor 2 out
2(2x² - 5x - 12) = 0 then factor. You need two numbers that multiply to be -24 and add to be -5, so -8 and 3 are the factors.
(2x² - 8x) + (3x - 12) group them either way and then factor out GCF
2x(x - 4) + 3(x - 4) = 0
(2x + 3)(x - 4) = 0, set each factor = 0 and solve
2x + 3 = 0, 2x = -3, x = -3/2
x - 4 = 0, x = 4