Hey guys, can you help me? The ratio of the numbers of boys to the number of girls is 4:5, there are 270 students at this school.

Question 1: True or false, The number of boys at school is 4/5 the number of girls.

Question 2:True or false, 4/5 of the students in the school are boys.

Question 3: True or false, There are exactly 30 more girls than boys.

Question 4: True or false, There are exactly 30 boys at the school.

Question 5: True or false, 5/9 of the students in the school are girls.

May you please state why they are the answers that you put. Thank you!

Dear, Isabella

i believe the answer is letter c) 8

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