Algebra Answers

Three children, each accompanied by a guardian, seek admission in a school. The principal wants to
interview all the 6 persons one after the other subject to the condition that no child is interviewed before its
guardian. In how many ways can this be done? (please explain the concept, techniques and formula used to solve in details)

Find the present value, using the present value formula and a calculator. (Round your answer to the nearest cent.) Achieve $225,500 at 8.65% compounded continuously for 8 years, 155 days.

a train travels a distance of 4 500 kilometers in 2 days.how many days would it take to travel 1 400 kilometers

Find minimum values of the expression
a/(b^3+54) + b/(c^3+54) + c/(a^3+54) over all nonnegative real numbers a,b,c satisfy a+b+c=9/2

iF YOU DOUBLE my age and add 7 you get 42 more than my age how old am i.

Two solutions of 90% and 97% purity are mixed resulting in 21 litres of mixture of 95% purity. What is the quantity of 97% purity solution ?

solve the following equation factorization.

20^2+41x+20=0

the fax machine cost 600.00 depreciates at 20.00 a month. find a function f to determine value after three months use f(+)= ____t + ___

solve the following system of linear equations;
2(ax-by)+(a+4b)=0,2(bx+ay)+(b-4a)=0