HELP! ALGEBRA 2 PROBLEM?
Reds vary inversely as browns squared. If 100 reds go with 4 browns, how many reds
go with 10 browns ?
A) 16 
625 C) 2 D) none of these
A = k over B
A varies inversely with B. k is the constant of proportionality
Reds vary inversely as browns squared. If 100 reds go with 4 browns, how many reds
go with 10 browns ?
A) 16 625 C) 2 D) none of these
A = k over B
A varies inversely with B. k is the constant of proportionality
Comments
If two quantities vary inversely, their product is always the same (constant of variation k).
So rb² = k
100 • 4² = k
100 • 16 = 1600 = k
so r • 10² = 1600
100r = 1600
r = 1600 ÷ 100
r = 16