Xy is the number
A) x + y = 7
B) 10y + x = 10x + y + 9
collecting terms of equation B
B) -9x + 9y = 9
multiplying A) by 9
A) 9x + 9y = 63 then adding it to equation B)
B) -9x + 9y = 9
18y = 72
y = 4
x = 3
The number is 34
It would be 2/4. 2/4 simplifies to 1/2.
<h2>Answer </h2>
D. 6x>_360; x>_60
<h2>Explanation</h2>
Let
be amount you will save each weeks
Since we know that you are saving over a period of 6 weeks, you will save
.
We also now that your goal is to save at least $360.00 over the period of 6 weeks, so saving more than $360.00 will be very desirable, but the goal is to save $360.00. We can rephrase this as: You need to save $360.00 or more; we can say the same using the inequality symbol
(greater on equal than)
Now we can combine our tow parts using the inequality symbol:

To simplify divide both sides by 6:


You need to save at least $60 per week, so the correct answer is D. 6x>_360; x>_60
Answer:
4.5
Step-by-step explanation:
The discontinuity occurs when the denominator is equal to zero, as it has "infinite" slope, and thus is not a real value or point.
x^2+x-12
x^2+4x-3x-12
x(x+4)-3(x+4)
(x-3)(x+4)
So discontinuities occur when x=-4 and x=3