Answer: $13.00
Because it states in the question: Package A charges $15.00 for the first car wash and a dollar less for each car wash after. If they were to wash two cars then a third, the first car would be $15.00 while the second would be $14.00 and the third would be $13.00 since package A is subtracting a dollar every wash.
Well gradient means "slope" I just found out from searching the web.
First let's put y = 4 + 2x into slope intercept form of y = mx + b
y = 2x + 4
"m" is the slope, in this equation it would be 2.
The slope or "gradient" is 2.
The y-intercept of any equation in slope intercept form is the value of "b"
In this equation, the y-intercept is 4.
Step-by-step explanation:
let Remus' money be = y
Aaron's = 5/7 y
3/5 * 5/7 y = 3/7 y
balance= 2/7 y
y - 2/7y = 2820
5/7 y= 2820
y = 2820*7/5= 564*7 = 3948
-(-9)=9 is true because a negative to a negative is positive
