Add leila's and jo's profits together so 3+4 = 7
now divide 105 by 7 = 15
multiply that by 3 and you get $45
To calculate the speed of the 70 teeth countershaft drive gear, evaluate the surface teeth per minute (STM) of each gear. STM = Speed x number of teeth, which is equivalent for both gears. Thus, 45 teeth * 450 r.p.m. = 70 teeth * 'x' r.p.m. is the governing equation. Rearranging the equation to calculate 'x' as the 70 teeth gear's speed, the answer is 289.3 r.p.m.
Answer:
I think I've answered this question already.
Step-by-step explanation:
Answer:
168 ft
Step-by-step explanation:
To calculate the area of a parallelogram, the formula is Area=base*height
In this case, the base is 14ft and the height is 12ft
so,
14ft*12ft=168ft^2
He needs 168ft or fabric to cover the area
