Answer:
$128.40
Step-by-step explanation:
200 × 0.4 = 80
200 - 80 = 120
120 × 0.07 = 8.4
120 + 8.4 = 128.4
Answer:
5
Step-by-step explanation:
The side with 4 cubes has a length of 2, the side with 2 cubes has a length of 1, and the side with 5 cubes has a length of 2.5.
2 x 1 x 2.5 = 5
Well, let's see. My main problem here is how to lay it out clearly for you.
-- Do you remember the definition of a 'radian' ? A radian is an angle, that's
just the right size to cut one radius-length arc out of the curve of the circle.
-- So every radian of spin moves the tip of the propeller a distance that's
equal to the radius of the circle.
-- Now the radius of the circle that the tip of the propeller traces
is the length of the propeller blade ... 22.5 cm .
-- 130 radians per second means the tip of the propeller is traveling
the length of the circle's radius 130 times a second.
-- (130) x (22.5 cm) = 2,925 centimeters/second = 29.25 meters/second.
Equation setup: 3x+18=4x+2
Answer: x= 16