Answer:
a) 75
b) 360 students
c) 56 ; 57 ; 58
d) 134 inches
e) 27°
Step-by-step explanation:
a)
[tex]5x = 375 \\ x = \frac{375}{5} \\ x = 75[/tex]
b)
[tex] \frac{x}{3} = 120 \\ x = 120 \times 3 \\ x = 360[/tex]
c)
[tex]x + x + 1 + x + 2 = 171 \\ 3x = 168 \\ x = 56 \\ (x + 1 = 57) \\ (x + 2 = 58)[/tex]
d)
[tex]2x + 2 \times 70 = 408 \\ 2x = 408 - 140 \\ x = \frac{268}{2} \\ x = 134[/tex]
e)
[tex]180 = 90 + 63 + x \\ x = 180 - 90 - 63 \\ x = 27[/tex]
