Jenna o simolola ka disafire di le 8. O ananya disafire di le 3 ka di rubi di le 2. Fa disafire di ja P800 le di rubi di ja P1200, dijeware tsa gagwe tsotlhe di ja bokae?

On a certain day, the total cost of filling up 20 helium balloons was $900. Two days later, the cost of filling each balloon was increased by $20. How much did Bentley pay to fill 170 balloons if he went to fill them after the price increase?
Sa ntlha bona palo yotlhe ya disafire tse Jenna a saleng natso: disafire di le 8 - disafire di le 3 = <<8-3=5>>disafire di le 5
Morago ga foo atisa palo e ka tlhwatlhwa ya safire e le nngwe go bona tlhwatlhwa yotlhe ya disafire: disafire di le 5 * P800/safire = P<<5*800=4000>>4000
Morago ga foo bona tlhwatlhwa yotlhe ya di rubi: di rubi di le 2 * P1200/rubi = P<<2*1200=2400>>2400
Morago ga foo tlhakanya seno le tlhwatlhwa ya disafire go bona tlhwatlhwa yotlhe ya dijeware tsa gagwe: P2400 + P4000 = P<<2400+4000=6400>>6400
#### 6400

If the total cost of filling up 20 helium balloons was $900 before the price increase, the cost of filling one balloon was $900/20=$<<900/20=45>>45
Two days later, the cost of filling each balloon was increased by $20 to $45+$20=$<<45+20=65>>65
If Bentley had 170 balloons that he wanted to fill, after the price increase, Bentley paid 170*$65=$<<170*65=11050>>11050 to fill 170 balloons.
#### 11050