Algebra Answers

Consider what you know about absolute change, relative change, and average rate of change. Identify which type of change best describes each of the following values and explain your answer.

a) 45%
b) $45/year
c) $45

Consider what you know about absolute change, relative change, and average rate of change. Identify which type of change best describes each of the following values and explain your answer.

a) 45%
b) $45/year
c) $45

What is 2x +3/5bx?

if 10 men, working 7 hour a day dig a trench 147m long, now many man working 8 hour a day dig a trench 168m long ?

five real numbers r,a,b,c,d are such that
{(r-1)^(1/2)+2*(a-4)^(1/2)+3*(b-9)^(1/2)+4*(c-16)^(1/2)+5*(d-25)^(1/2)}=((r+a+b+c+d)/2)
Find the value of r+a+b+c+d=
a)55 b)210 c)not uniquely determined d)110

There are 1.8*10^-13 red blood cells in the body. A blood cell has a lifespan of 120 days What percentage (correct to 2 significant figures) of our red blood cells are formed/destroyed every day?

Find a number such that one-half of the number is 5 less than two-thirds of the number.

Which ordered pair(s) are all the y-intercept(s) of the equation y=x^2+2x+1 ?

A businessman in Philadelphia wants to buy electric heaters. His best sources are two firms in Chicago. Let’s call them Firm A and Firm B. Firm A lists a heater at $291 less 331⁄3% and 10%, F.O.B. Chicago. Firm B lists the same heater at $350, less 30% and 20%, F.O.B. destination. In addition, both firms offer a 2% discount for cash within 10 days. The freight on each heater would be $22.75. What will be the least cost of the heater from each concern?

Ryan paid $19.99 for a 7.98-kg bag of dog food. A few weeks later, he paid $20.38 for each bag. Finally, state which bag is better but based on the unit price. Round your answers to the nearest cent(hundered).