Algebra Answers

Norway was recently announced as the country with the highest average life expectancy. The average life expectancy is one and half times greater than South Africa, while Germany has an average life expectancy that is 2 years less than the average life expectancy of Norway, South Africa and Germany is 214 years. Determine the life expectancy in each country

Which ordered pair would be the solution to this system of equations?

3x-4y=20
y=-3x+10

A(4,2) B(4,-2) C(-4,-2) D-4,22)

The Bakers at Healthy Bakery can make 280 bagels in 5 hours. How many bagels can they bake in 14 hours? What is that rate per hour?

(x-h)^2=x^2-8x+14
Find the value of h

Small pieces were three dollars and large pizzas for five dollars. With the throne, it was necessary to spend $475 for 125 pizzas. How many pieces of each type of purchased?

Small pieces were three dollars and large pizzas for five dollars. With the throne, it was necessary to spend $475 for 125 pizzas. How many pieces of each type of purchased?

If a+b is a root of X square + ax + b equals 0 then what is the maximum value of b square?

David has $200 in the bank. He bought a present for his mother for 1/2 of this amount and spent 1/2 of the remainder on some books. How much does he have left?

For any real number x, prove that x(x+1)(x+2)(x+3)+1 ≥ 0

Mai finished her math assignment in x
hours. Then she completed her chemistry assignment in y
hours. What was the total amount of time Mai spent doing these two assignments?