Answer:
47 years old.
Step-by-step explanation:
Let c represent each children, 'f' represent the father and 'm' represent the mother. We are given that:
Replace the first two equations into the last to solve for 'f':
The father is 47 years old.
B)
0
Positive 17 Plus Negative 17=0
Answer:
the cost of the three new CDs is $44.28
Step-by-step explanation:
Here in this question, we are interested in calculating the cost of 3 new CDs cost.
From the question, we already know the cost of one. The cost of three would be 3 multiplied by the cost of one.
The cost of the three excluding the sales tax = $13.79 * 3 = $41.37
The sales tax for the three pieces = 3 * $0.97 = $2.91
The cost of the three CDs including the sales tax = $41.37 + $2.91 = $44.28
Answer:
<u>The critical numer is x = -3/10</u>
Step-by-step explanation:
We need to find the derivative of the function and then equal to zero to get the values of x.
The function is:
Let's take the derivative whit respect of x and equal to zero.
Now, we just need to solve it for x.
<u>The critical numer is x = -3/10</u>
I hope it helps you!