If $4.59 = 5.4 peanuts
$x = 7. 8 peanuts
Cross multiply and you get:
5.4x = (4.59)(7.8)
x = ((4.59)(7.8)) / 5.4
x = $6.63
Answer:
1/3
Step-by-step explanation:
6+-5 2/3 = 6-5 2/3, so the difference is 1/3
It is quadratic, because the highest degree for x is 2, x². Expand the expression and you'll see: f(x)=3x²-3x-3x-7
simplify: f(x)=3x²-6x-7
the quadratic term is 3x², the linear term is -6x, the constant is -7
Answer: which question
Step-by-step explanation:
So we can call the width of the rectangle x.
So then the length would be 4x.
The perimeter would then be 10x.
Since the perimeter is 70, we can say 70 = 10x.
And then simplify that to 7 = x.
So the length of a rectangle would be 28 cm, and the width would be 7.
So to find the area, just multiply length by width.
28*7 = 196 square cm
So the rectangle's area is 196 square cm.
I hope I helped!
