math, algebra
posted by jasmine20 .
Problem: A formula for a football player's rushing average r with a total of y yards rushed in n carries of the ball is r=y/n. Solve for n.
I have no other information this is how its in the book how do i even solve for n if theres no numbers.
You don't use numbers. It asks to solve for n.
r=y/n
What the problem is asking you to do is to get n on the left side and all the other variables on the other side. That is "solving for n."
Multiply both sides of the equation by n.
r*n=n*(y/n)
You see that cancels the n on the right.
r*n=y
Now how can we get r to the other side. We can divide both sides by r.
(r*n)/r=y*r
That move cancels the r on the left.
n=y/r and there you have it. You have solved for n in terms of the other variables. Now, whan and if you get numbers, you can put in y and r and solve for n in terms of a number.
i wouldn't of ever figuered that out.
You don't use numbers. It asks to solve for n.
r=y/n
What the problem is asking you to do is to get n on the left side and all the other variables on the other side. That is "solving for n."
Multiply both sides of the equation by n.
r*n=n*(y/n)
You see that cancels the n on the right.
r*n=y
Now how can we get r to the other side. We can divide both sides by r.
(r*n)/r=y*r I made an error here. I said to divide both sides by r and I did divide the left side by r but I multiplied on the other side. I should have written (r*n)/r=y/r. The final equation that follows; i.e., n=y/r is correct as I have it below. I guess I thought one think but typed something else. Sorry about that.
That move cancels the r on the left.
n=y/r and there you have it. You have solved for n in terms of the other variables. Now, whan and if you get numbers, you can put in y and r and solve for n in terms of a number.
ok
Respond to this Question
Similar Questions

algebra
I am confused about this one. It is about football. "In a football game the ball was advanced 5 yards from the Juniors' 25yard line towards the Seniors' goal, then 6 yards then 8 yards back, 13 yards forward, 5 yards back, and then … 
Physics
A football player punts the football so that it will have a hang time of 4.5s and land 46m away. If the ball leaves the player's foot 1.5m above the ground, what must be (a) the magnitude and (b) angle (relative to the horizontal) … 
math
a running back rushed for 129 yards through 3 quarters.in the 4th quarter the running back lost 5 yards per rush. the runing back rushed 5 times in the 4th quarter. 2) how many total yards did the running back have after the 4th quarter? 
math
a running back rushed for 129 yards through 3 quarters.in the 4th quarter the running back lost 5 yards per rush. the runing back rushed 5 times in the 4th quarter. 3) imagine that instead of losing yardage on each rush in the 4th … 
algebra
Please check these too. thanks Simplify 6[86(9486)]= my answer is 468 2. On three consecutive passes, a football team gains 6 yards. loses 17 yards and gainbs 31 yards. Wht number represents the total net yards. The total net years … 
Math
We are studying Quadratic formula: A football player punts a ball. The path of the ball can be modeled by the equation y=0.004x(squared) + x + 2.5, where x is the horizontal distance, in feet, the ball travels and y is the height, … 
math
a football player can run 20 yards in 3.4 seconds. write an equation to find y, the number of yards the football player can run in a second? 
math
Please explain in detail so I can understand how to do it: A football player punts a ball. The path of the ball can be modeled by the equation y = 0.004x^2 + x +2.5, where x is the horizontal distance, in feet, the ball travels and … 
math
a football player attempts a field goal from a distance of 52 yards. The ball reaches a maxium height of 9 yrds and lands 8 yards behind the uprights. If the uprights are 3 yards high. algebraically determine if the field goal was … 
Math
If a football player gains 40 yards on a play, but on the next play, he loses 10 yards, what would his total yards be for the game if he ran for another 60 yards?