The plot: x meters wide and (x+30) meters long with an area of 15000 m^2. the equation you're searching for is:
x meters * (x+30) meters = 15000 m^2 or
x^2 + 30x m^2 = 15000 m^2 and
x^2 + 30x - 15000 = 0 <== that's the equation.
ans: x^2 + 30x - 15000 = 0
Answer:
it times 4
Step-by-step explanation:
so each time you would multipley by 4
Answer:
15 cars
Step-by-step explanation:
10 ÷ 2 = 5
5 × 3 = 15
Jackie washed 15 cars
285-5x=340-10x
285-5x-(340-10x)=0
-5x-(-10x+340)+285=0
-5x+10x-340+285=0
5x-55=0
5x=55
x=55/5
x=11