Answer:
10x-5
Step-by-step explanation:
You subtract 15x-5=10x. Then you do -7+2. The 7 is negative . So it would be -7 plus two. So it would equal -5. So it's 10x-5
Answer:
You can just write Quadrant I: All values are positive, Quadrant II: Sine is positive, Quadrant III: Tangent is positive, and Quadrant IV: Cosine is positive.
In this case if x<100 George will be losing money. So he will only earn a profit when he sells more than 100 DVDs. Essentially (x-100) represents his break-even point.
Answer:
$
Step-by-step explanation:
You want to calculate the interest on $40000 at 5.7% interest per year after 17 years.
The formula we'll use for this is the simple interest formula, or:

Where:
- P is principal amount, $40,000
- r is the interest rate, 5.7% per year, or in decimal form,

- t is the time involved, 17 years
To find the simple interest we multiply
to get
The interest rate is $38,760
Usually now, the interest is added onto the principal to figure some new amount after 17 years.
or 40000.00 + 38760.00 = 78760.00
=$78,760
Answer:

Step-by-step explanation:
The statement "One-fourth more than a number is equal to two-thirds" can be expressed in the mathematical form as given below:
Let the number be x.
Therefore, One-fourth more than a number = 
Now,

This is the required answer.