Of the 800 sweaters at a certain store, 150 are red. how many of the red sweaters at the store are made of pure wool?
(1) 320 of the sweaters at the store are neither red nor made of pure wool.
(2) 100 of the red sweaters at the store are not made of pure wool.

the system of inequity is

step-by-step explanation:

from the given graph it is noticed that we have two related lines. one is solid and another is dashed.

if a line passing through two points, then the equation of line is

the solid line passing through the points (0,4) and (4,0).

the related equation of solid line is .

similarly, find the related equation of dashed line. the dashed liune passing through the points (0,0) and (3,1).

the related equation of dashed line is

from the given graph it is noticed that the point (0,1) lies on the shaded region, therefore the point (0,1) must be satisfied by the related equations.

check the related equations by the point (0,1).

this statement is true if the sign of inequality is < instead of equality. since it is an solid line therefore the sign of inequality will be . the required inequality is

similarly, check the second related equation.

it is a dashed line, so this statement is true if the sign of inequality is > . the required inequality is

two data sets with the same median will not have the same varaibility

step-by-step explanation:

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step-by-step explanation:

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