Fernando built a robot to filter air and water efficiently. he expects the robot to filter more than 512 liters of air and water while using less than 9 joules of energy.
a represents the number of minutes the robot filters air, and w represents the number of minutes the robot filters water.
21a+14w > 21a+14w> 51, a, plus, 14, w, is greater than, 512 represents the number of minutes the robot filters air and water to filter more than 512512512 liters of air and water.
0.36a+0.6w < 90.36a+0.6w< 90, point, 36, a, plus, 0, point, 6, w, is less than, 9 represents the number of minutes the robot filters air and water while using less than 9 joules of energy.

there are no figures how am i supposed to answer this question

step-by-step explanation:

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

8+10

step-by-step explanation:

you multiply 4 by 2 and 5 by 2

they would have to work 32 hours.