Barb is making a bead necklace she strings one might be then 3 blue bead then 1 white bead and so on write the numbers for the first 8 beads that are white. what is a rule for the pattern

i'm a sophomore in connections, i'd recommend checking on jishka.com they have a large range of questions and answers from our school.

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.