Ascientist measured the amount of rainfall during the afternoon. it rained 0.43 inch each hour. what was the total amount of rainfall in 3 hours

1.29

Step-by-step explanation:

All you have to do is multiply.

0.43 x 3 = 1.29

1.29

Step-by-step explanation:

each hour is 0.43 so multiply it by 3 hours to get 1.29 in.

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is