The consumption of a vegetable has decreased. The consumption per capita in 2000 was 25.2 pounds, and in 2010, the consumption dropped to 15.2 pounds. Find the percent decrease. Round to the nearest tenth of a percent.

40%

Step-by-step explanation:

The consumption of a vegetable has decreased. While the consumption per capita in 2000 was 25.2 pounds, in 2010, the consumption dropped to 15.2 pounds.

Consumption in 2000= 25.2 pounds

Consumption in 2010= 15.2 pounds

Difference in consumption=

25.2 - 15.2 = 10.0

Percentage decrease will be difference in consumption divided by original consumption in 2000 multiplied by 100. This will be:

= 10.0/25.2 × 100

= 0.4 × 100

= 40%

option 1 is correct.

step-by-step explanation:

y varies inversely with x and constant of variation is 4

the equation will be:

y = k/x

where k =4 so,

y = 4/x

if we put values of x of option 1 in the above equation and find values of y

y = 4/-2 => y =-2

y = 4/-1 => y = -4

y = 4/1 => y = 4

y = 4/2 => y =2

so, all the values of x and y are correct.

if we put values of x given in other options and find value of y we cannot find whole table satisfying the equation.

hence option 1 is correct.

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64