Out of the 28 students in the class, 21 wore sneakers to school. What is the ratio of students who wore sneakers to school to those who did not wear sneakers? Answer must be in SIMPLEST FORM!!!
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3:1

Step-by-step explanation:

who did not wear = 28 - 21

= 7

ratio = 21: 7

= 3:1

i think 5 miles per hour

step-by-step explanation:

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)