Answer:
20
Step-by-step explanation:
area = length * breadth
320cm² = length * 16cm
divide both sides by 16cm to isolate length
20cm = length
To find the zeros, you have to factor the equation.
y=(x+19)(x-9)
This is because 19*-9=-171 and 19-9=10.
Now to make x=0, you have to make the equation
x+19=0
and x-9=0
To solve, isolate x on both equations.
This makes x=-19 and x=9.
<span>60,000 converted into tons is
"30"
Hope this helps!</span>
Answer: $4
Step-by-step explanation:
In this situation let's set up a proportional relationship .
Now solve by cross multiply
0.5x = 2 Divide both sides by 0.5
x = 4
This means that if Emily bikes 10 miles, her mother will donate $4.
