I have to solve this equation by elmimination x-y-2z=4,-x+2y+z=1 and -x+y-3z=11.

I have to solve this equation by elmimination x-y-2z=4,-x+2y+z=1 and -x+y-3z=11.

f(x) = x + 4 g(x) = x - 3 for which value of x is (f⁄g)(x) undefined?

find the function rule for g(x)

A contractor is installing carpet in a new house. The rectangular living room has an area of 96 square feet, and the length is twelve feet less than three times the width of the room. What are the...

The number 260 is separated into two parts so that the first part is eight more than three times the second part. What are the two numbers?

Of the 193 member countries of the United Nations, 54 are in the African Group and 23 are in the Eastern European Group. Suppose that a country is selected at random from the members of the United...

When a fraction has a numerator that is one less than twice an unknown number and a denominator that is that unknown number, the fraction will be greater than the unknown number increased by four...

3^x+3^(x+1)+3^(x+2)=2^x+2^(x+2)+2^(x+3)

Write your answer as a mixed number in simplest form

[-12 -w2] = [2k -81] 2f 3 -14 3

A construction company is digging basement for a house. The length is 45 feet more than the width, and the height is 19 feet less than the width. If the volume of the basement is 24,750 cubic...

Six ounces of an insecticide are mixed with 15 gal of water to make a spray for spraying an orange grove. At the same rate, how much additional insecticide is required to be mixed with 85 gal of water...

One and one-half ounces of a medication are required for a 140-pound adult. At the same rate, how many additional ounces of medication are required for a 210-pound adult?

g(n) = 3n + 2 f(n) = 2n2 + 5 find g(f(2))

After sailing 18 mi, a sailor changed direction and increased the boat's speed by 2 mph. An additional 11 mi was sailed at the increased speed. The total sailing time was 3 h. Find the rate of the...

Josiah has 2 jobs and can work at most 30 hours per week. He makes $10 per hour at Zummies and $12 per hour at construction buisiness. If he wants to make at least $300 a week write a systems of inequalities...

fractions

The current (I) in a wire varies directly as the voltage (v) and inversely as the resistance (r). If the current is 27.5 amps when the voltage is 110 volts and the resistance is 4 ohms, find the current...

The negative of a certain number divided by three more than that number is less than four more than the number. Find the solutions that satisfy this inequality.

On an architectural drawing, 1/2 inch represents 1 ft. Using this scale, find the dimensions of a room that measures 4 1/2 in. by 6 in. on the drawing. smaller dimension ...