Answer:
504 millimeters (or 50.4 cm)
Step-by-step explanation:
Width of key in student calculator = 14 millimeter (1.4 cm)
Width of key in demonstration calculator = 2.8 cm
Thus, the demonstration calculator's dimensions are twice that of students' (in cm)
Also given, student calculator height as 252 millimeters (25.2 cm)
Thus demonstration calculator height will be twice of that = 50.4 cm (or 504 millimeters)
The school have to charge each candy bar for $0.80 cents to make a profit of $10 per box.
First piece is x
second piece is y. y=4x
third piece is z. z=3y=12x
x+y+z=680
x+4x+12x=680
17x=680. x=40cm y=160cm. z=480cm
Answer:
x=14
Step-by-step explanation:
m= y2-y1 / x2- x1
3/4 = 10 - 1 / x - 2
3/4= 9/ x-2
x = 14
because 14-2=12 and 9/12 simplifies to 3/4
