Hey how do you know of can run 1/4 of a mile in 22.5 seconds. at this rate, which equation can be used to determine how fast a hyena runs in miles per hour? a. 1/4 divided by 22.5 = 40 b. 22.5 divided by 1/4 = 40 c. 1/4 divided by 22.5 = 90 d. 22.5 divided by 1/4 = 90

D

Step-by-step explanation:

If its 1 quarter of a mile in 22.5, then we take s, seconds, times 4 which is 90.

SO we cross out A and B, and we're left with C AND D.  Now we check the math on them.

.25/22.5 is 0.01111111 (repeating)

and 22.5/.25 is 90!

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or  

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is