Abox with 3 metal balls weighs 1840 kg.
each metal ball weighs thrice as heavy as the box.
how much does a box with 1 metal ball weigh?

736 Kg

Step-by-step explanation:

Let the weight of the box be x, then

the weight of each ball = 3x

Sum the weight of the box and 3 balls and equate to 1840, that is

x + 3x + 3x + 3x = 1840

10x = 1840 ( divide both sides by 10 )

x = 184

The weight of the box = 184 Kg and the weight of 1 ball = 3 × 184 = 552 Kg

The weight of the box and 1 ball = 184 + 552 = 736 Kg

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