Sky bought $22.50 worth of paint supplies at a store that sells brushes for $1.50 each and tubes of paint for $2.50 each. Let b represent the number of brushes bought and t
represent the number of tubes bought.

Which one of the following could not be true about the values of b
and t
?

b=0
and t=9

b=6
and t=5

b=10
and t=3

b=15
and t=0

b = 10 , t = 3

Step-by-step explanation:

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

you estimate that the angle of elevation to the top of the 86th floor (the observatory) is 82 .the total height of the building is another 123 meters above the 86th floor.

leave feedback if u need : )