Tuesday, February 16, 2010

Golf Ball Red Dots How Many Golf Balls Of Each Kind Were Bought?

How many golf balls of each kind were bought? - golf ball red dots

Please help me make the equations! I have many problems with "we" statements and the like


A shop sells golf balls for 60 cents Red Dot, Black Dot bullets for 94 cents each, and each with the Golden Ball Point for $ 1.10. A professional golf has bought two dozen new Red-Dot-Dot-gold balls and three times more than the Red Dot Dot black ball. If the ball and the value of one U.S. dollar cost 140.50 tees and balls made of gold, the number of each species were purchased?

3 comments:

Xavier said...

This red = x
Let black dot = y
Sea Gold Dot = z

z = x - 24
y = 3x

0.6x + 0.94y + 1.1z + 1 = 140.5
0.6x + 0.94 (3x) + 1.1 (x-24) = 140.5-1
2.82x + 0.6x + 1.1x - 26.4 = 139.5
4.52x = 139.5 + 26.4
x = 165.9/4.52
x = 36.703

y = 36.703 * 3
z = 36.703-24

37 points, 110 census of black gold with 13 points
I believe that, check back please!

bubu said...

Let r be the number of balls red dot
B is the number of balls of the black spot
Let g Total points golden balls
Balls bought = R + G + G
g + 24 gn = r = R - 24
b = 3 * r
What is the cost of things bought
0.6 r + 0.94b + 1.1G + 1 (exit) = 140.5
and 0.6 r + 0.94 * 3 * R + 1.1 * (R-24) 1 = 140.5
This gives r (0.6 0.94 * 3 +1.1) -1.1 * 24 +1 = 140.5
4.52r - 25.4 = 140.5
4.52r = 165.9
It seems that these equations can be solved in integers, but (if the item is misspelled - or is just an example to show that you understand how the equations?)

Harris said...

know. But try to move the ball from 1.10, if u have, say, fourth from the left to start a whole, half the number of balls g, then -24. I believe that work ITL

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