Answer:
b= -1
Step-by-step explanation:
3b-1=b-3
2b - 1 = -3
<u>2</u>b = -2
= -1
Answer:
w≥15
Step-by-step explanation:
Subtract 80 from both sides to get -2w≤-30. Divide both sides by -2. Because it is negative, flip it. You will get w≥15.
Answer:

Step-by-step explanation:
So we want to find the derivative of the rational equation:

First, recall the quotient rule:

Let f be x^2-2x and let g be x^3+3.
Calculate the derivatives of each:


So:

Use the above format:

And that's our answer :)
(If you want to, you can also expand. However, no terms will be canceled.)
Answer=8.6c+13
Meg earns $5.40 per car and $5 in tips. Given the information, Meg's earnings can be shown in the expression '5.40c+5'
Rich earned 3.20 per car and $8 in tips. Given the information, Rich's earnings can be shown with the expression '3.20c+8'
Now lets put the expressions together to see how much they made all together...
5.40c+5+3.20c+8
add 5.40c and 3.20c
8.60c+5+8
add 5 and 8
8.60c+13
or
8.6c+13