Math help 10 questions? SAT question!?
When Suraj goes to Roycefield golf course, he loses 20 percent of the (golf) balls he uses. When he goes to Hunterdon golf course, he loses 30 percent of the balls he uses. It costs Suraj $1.20 to buy a ball. This weekend, Suraj is planning to use 25 balls at Roycefield and 30 balls at Hunterdon, If he only has $20 to spend on balls, how many balls can he buy in order to guarantee that he will be able to replace the balls he loses this weekend?
- ?Lv 76 months agoFavorite Answer
When Suraj goes to Roycefield golf course, he loses 20 percent of the (golf) balls he uses.
When he goes to Hunterdon golf course, he loses 30 percent of the balls he uses
Suraj will need to replace 5+9 = 14 balls @ $1.20 each
With $20, he can buy
..........-------------- = 16.66 or 16 balls..............ANS
- Charles DLv 66 months ago
At Royce he will loose 25 * 0.20 = 5 golf balls
At Hunter he will loose 30 * 0.30 = 9 golf balls
The sum is 14. 14 * $1.20 = $16.80. So se has enough money to replace the balls he might use.
The question though is " how many balls can he buy" rather "than how many balls should he buy". He can buy 20/1.20 = 16.6 or 16 golf balls.
You will have to look at the answer sheet to determine what the question is.
- billrussell42Lv 76 months ago
At R, 25 x 0.2 = 5 balls lost
at H, 30 x 0.3 = 9 balls lost
assuming he has the 55 balls to start with....
so he has to buy 14 balls for replacement, which is 14 x $1.20 = $16.80
so he can buy 14 balls at $16.80