The sum total of the angles in a triangle is equal to 180° degrees.
Answer:
95.9
Step-by-step explanation:
since the hundredths place is 1 you round down so the tenths place doesn't change and remains as 95.9
Answer:
y = (4/3)x - 7
Step-by-step explanation:
For perpendicular lines,
m1×m2 = -1, where m1 and m2 are their gradients
m1 = -3/4
-3/4 × m2 = -1
m2 = 4/3
y = (4/3)x + c
When x = 12, y = 9
9 = (4/3)(12) + c
9 = 16 + c
c = -7
y = (4/3)x - 7
9x + 3 = 7x +19
2x + 3 = 19
2x = 16
x = 8
So, x (8) is the number of chairs in each row with these setups.
Plug 8 into one of the equations and you will find how many chairs total there are.
9(8) + 3 = 75
There are 75 chairs total