So, we need to do the distance she travelled (21 miles) divided by the rate at which she travelled (4 hours). Therefore, because 21 divided by 4 is 5.25, she biked at a speed of 5.25 mph (Miles per hour). So, if she bikes 5.25 miles every hour we can divide 42 by 5.25 to get the time it would take her to travel 42 miles. Now, 42 divided by 5.25 equals 8, so that means for Shelly to bike 42 miles at her average speed of 5.25 mph, it would take her 8 hours.
Answer:
267.
Step-by-step explanation:
Answer:
96
Step-by-step explanation:
you will cut the figure into a 9x9 square, 2x4 rectangle, and a 3x3 curved triangle.
For instance take 9; 9x4= 36
So it will be equal
Answer:
Aluno X
Step-by-step explanation:
A nota média para os alunos X e Y são, respectivamente:
A variância é definida pela seguinte expressão:
Onde n é o numero de termos, neste caso, n = 4.
As variâncias para cada aluno são:
O aluno X apresentou uma variância menor do que o aluno Y em suas notas e, portanto, apresentou ser o mais regular.
