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2 years ago

10

Q=p(r+s) solve for p

2 answers:

Zigmanuir [339]2 years ago

7 0

Q=p(r+s)
Q/(r+s)= p(r+s)/(r+s)
ANSWER
Q/(r+s) = P

Whatever you do to one side of the equation, you must do to the other.

Reil [10]2 years ago

3 0

Q = p(r + s)
Use the distributive property
Q = pr + ps
Q = p x r + p x s
Q = p x p + r x s
Q = p^2 + rs
Subtract rs from both sides
Q - rs = p^2
Square root both sides
sqrt Q - rs = p

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Given:

Jeffery babysits for 4 dollars per hour and works as a math tutor for 7 dollars per hour.

He is only allowed to work 13 hours total per week.

He wants to make at least 65 dollars.

To find:

The system of inequalities to represent this situation.

Solution:

Let x be the number of hours he babysits per week and y be the number of hours h works as a math tutor.

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