In five years,Emma will be three years more than twice as old as her son. Five years ago,she was two years less than five times, as old as her son. How old Emma now?
A bicyclist of mass 65 kg stands on pedal. The crank is .170 m long and makes a 45 angle with the vertical. The crank is attached to the chain wheel which is 9.70 cm. What force must the chain exert to keep the wheel from turning?
414/7 = x/16 7x = 414(16) 7x = 6624 x = 6624/7 x = 926.29 but I wonder did you mean 4.14 in which case the answer would be 9.29
I need help, my teacher says that I'm half way right with this but not fully what am I missing I'm confused. The criteria for the quadratic equation as i written is: y>0 is real roots y=0 is real and equal roots y<0 is imaginary or complex roots My teacher said I...
an angle is 62.3 degree. find its supplement?
Lily, Jane & Betty gave away 224 balloons at a carnival. Lily gave away 4 times as many balloons a Betty while Jane gave away half as many balloons as Lily. How many balloons did Jane give away?
college math please help
What do these mean? They are supposed to represent things but I don't understand them. C=2╥r for r, S=P+Prt for t, and A=2lw+2lh+2wh for h
college math word problem
A new car worth 45K is depreciating in value by 5K per year. How can I write a formula that models the cars' value,y, in dollars, after x years?Then using the formula determine after how many years the cars' value will be 9K.
One number exceeds another by 24. The sum of the numbers are 58. What are the numbers?
When 80% of a number is added to the number, the result is 252. How do I find the number?