4.6 meters per second was her walking speed
5miles/8km = xmiles/80km
8x=400
x=50
9/6 = 1.5
24/1.5 = 16
triangle DEF has a primeter of 16 inches
1: 1.19 for 67.2 ounces is about 1.77 cents per ounce. However, $1.50 for 72 ounces is about 2.08 cents per ounce. Clearly, then, the first bottle is cheaper.
2. We simply divide 3/4 by 2 to get (3/4)/2=3/(4*2)=3/8.
3. If the length of the second is 20 feet compared to a 2-foot length for the first, the width of the second rectangle will be ten times the width of the first, so the width of the second rectangle is 10*8=80.
The line of symmetry.
It divides the parabola into to halves that are exactly the same.
