\/(5x) = x\/5
[\/(5x]² = [x\/5]²
5x = 5x²
5x²-5x = 0
5x(x-1) = 0
5x = 0 --> x = 0
x-1 = 0 --> x = 1
Train A:
Distance (s) = 420 miles
Time (t) = 3 hours
Speed (v) = distance ÷ time = 420 ÷ 3 = 140 miles/hour
Train B:
Distance (s) = 420 miles
Time (t) = 2.25 hours
Speed (v) = distance ÷ time = 420 ÷ 2.25 = 186.7 miles/hour
the pattern is that you take each number and multiply it by 3
Answer:
It compares 3 meals to 1 day.
Step-by-step explanation:
"Unit rate" refers to a rate that has 1 unit in the denominator.
(3 meals)/(1 day) . . . . "three meals per day"
has one unit (1 day) in the denominator, so that is a unit rate.
Answer:
C. 88 in.
Step-by-step explanation:
This is because the equation for the circumference of a circle is pi times diameter. To get the diameter, multiply the radius by 2. Then do 28*3.14 to get the circumference of the circle then round your answer to get the nearest whole number which is 88 in.
