Last year for every 100 million vehicles that travelled on a certain highway, 96 vehicles were ...
Last year for every 100 million vehicles that travelled on a certain highway, 96 vehicles were involved in accidents. If 3 billion vehicles traveled on the highway last year, hom many of those vehicles were involved in accidents (1 billion=1,000,000,000)?
Answer/Solution
320
Steps/Work
Explanation:
If r is halved then it is possible to substitute 1/2r for r in the formula and simplify:
1/(2(1/2r))^3=1/(8(1/8r^3))=1/r^3
Compared to the original where:
V=1/(2r)^3=1/(8r^3), the new value of V is 1/r^3 or
8(1/(8r^3))=8V
When r is halved then V is multiplied by 8.
Answer: Option B
If r is halved then it is possible to substitute 1/2r for r in the formula and simplify:
1/(2(1/2r))^3=1/(8(1/8r^3))=1/r^3
Compared to the original where:
V=1/(2r)^3=1/(8r^3), the new value of V is 1/r^3 or
8(1/(8r^3))=8V
When r is halved then V is multiplied by 8.
Answer: Option B