Deron can paint a room in 3 hours working alone. Tristan can paint the same room in 6 hours working alone. How long after Deron starts to paint the room will it be finished if Tristan joins him 1...

Deron can paint a room in 3 hours working alone. Tristan can paint the same room in 6 hours working alone. How long after Deron starts to paint the room will it be finished if Tristan joins him 1...

In his boat, Jerry can travel 24 miles upstream in the same time that it takes to travel 36 miles downstream. If the rate of the current is 2 mph, what is the rate of the boat in still water?

Im having trouble solving this question....

I want to know the answer to the question

Jamar and Kerry are laying a hardwood floor. Working alone, Jamar can do the job in 20 hours. If the two of them work together, they can complete the job in 12 hours. How long would it take Kerry...

Big Ideas Math saids that I am wrong even though I think I am right.

Express the arithmetic sum using summation notation. 13 + 22 + 31 + + 184 k = 1

Use the formula for the sum of the first n terms of the arithmetic sequence to find the sum. 16 + 25 + 34 + + 97 S10 =

Raising a positive proper fraction to a natural number __________________ has a result that is less than that fraction a. Sometimes b. Always c. Never

Find the multiplicative inverse of the matrix, if it exists. 1 0 6 −2 1 8 5 0 2

Find the multiplicative inverse of the matrix, if it exists. A = −5 5 6 4

Write the first four terms of the sequence. a^n = −(−5)^n−1 (^meaning exponent) a^1= a^2= a^3= a^4=

Solve the system using the inverse of a 2 × 2 matrix. 3x − 2y = 3 −x + 5y = −1

Solve the system of linear equations using matrices with Gaussian elimination with back-substitution

Solve the system of linear equations using matrices with Gaussian elimination with back-substitution. (Enter your answers as a comma-separated list. If there are infinitely many solutions, express...

Use matrices with Gaussian elimination to solve the system of equations. (If there is no solution, enter NO SOLUTION. If there are infinitely many solutions, enter INFINITELY MANY.) x...

x1029 + 1/x1029 = 3 then x1029 - 1/x =?

In 1992 funding for a program increased by 0.10 billion dollars from the funding in 1991. In 1993, the increase was 0.72 billion dollars over the funding in1992. For those three years the funding...

(IF there is A Solution) −x2 + y = 8 −x + y = 8

through (-2,-2√2), opening left

if a=3