The slope is 30... each week he gains 30 dollars
His answer was wrong. The correct answer would be 129,000
Explain: 500 rounded to the nearest thousand would be 1000
But 499 rounded to the nearest thousand would not become 1000
Let x be the number of dime then the number of quarter will be 35-x
1 dime = 10 c & 1 quarter = 25 c, so
(x*10)+(35-x)(.25) = 575
-15x = -300
15x = 300 & x = 20 (dime) & Quarter = 15