Together, Fay and Rob can paint a house in 3 days. It would take Rob 3 times as long as it would take Fay to do it alone. How long would it take each of them, working alone?

Together, Fay and Rob can paint a house in 3 days. It would take Rob 3 times as long as it would take Fay to do it alone. How long would it take each of them, working alone?

Im not sure how to solve it.

Peanuts cost $7 a pound. Cashews costs 9$ a pound. There is a mixture of peanuts and cashews that weigh 10 pounds and costs$84.

We are using algebra

P(x) = -5x4 + x3 + 2x2 – 1 Use Descartes' Rule of Signs to analyze the zeros of the following. List all possibilities.

homework questions i dont know how to solve

homework questions i am confused on

homework problem

yes I will do the algebra.

linear function

A ball is propelled upward from ground level. After T seconds, its height in feet is a function defined by f(t)=-16t^2+128t After how many seconds will it reach a height of 112 feet.

Find the amount necessary to fund the given withdrawals. Quarterly withdrawals of $550 for 5 years; interest rate is 6.6% compounded quarterly. The amount necessary to...

Find the payment that should be used for the annuity due whose future value is given. Assume that the compounding period is the same as the payment period. $10,000; quarterly payments for...

R (x)=200x-2x2 C (x)=-X2 +10x+7425 0< x < 100 Find the number of units that must be produced to break even.

students from new york are planning a trip to a national park. if 50 students go, it will cost $1200. if 80 students go, the cost will be $1500. if you graph this data what would the equation of the...

The revenue function R (x) and the cost function C (x) for a particular product ate given. These functions are valid only for the specified range of values. Find the number of units that must be produced...

Al delivers twice as many papers as Julie. Brady delivers 50 more papers than Al. How many papers do each deliver out of 550 papers?

3x2 y2 --------- 2x-1 × 4yx2

X3 y3 × x3 ---------------- 4x2

2y3 × 3xy3 ---------------- 3x2 y4