Katie, Elizabeth, and Siobhan volunteer at the hospital. In a week, Katie volunteers 3 hours more than Elizabeth does and Siobhan volunteers 1 hour less than Elizabeth. Over 3 weeks, the number of hours Katie volunteers is equal to the sum of Elizabeth's and Siobhan's volunteer hours in 3 weeks. Complete the table to find how many hours each person volunteers each week (The graph says "Volunteer hours per week" And "Volunteer hours over 3 weeks")

Question

30-01-2017
Mathematics

contestada

Katie, Elizabeth, and Siobhan volunteer at the hospital. In a week, Katie volunteers 3 hours more than Elizabeth does and Siobhan volunteers 1 hour less than Elizabeth. Over 3 weeks, the number of hours Katie volunteers is equal to the sum of Elizabeth's and Siobhan's volunteer hours in 3 weeks. Complete the table to find how many hours each person volunteers each week (The graph says "Volunteer hours per week" And "Volunteer hours over 3 weeks")

Respuesta :

Otras preguntas

Select the sentence that is punctuated correctly A There never seem to be enough hours in a day,yet I always manage to get everything done. B There never seem t

A dependent variable is best described as

The ___________ Amendment is the only constitution amendment that was ratified by approval of conventions in three-fourths of the states A.) Eighteenth B.) Fif

excretion of wastes is important to maintaining homeostasis. which three are involved in the excretion of wastes in humans? A. Urinary, skeletal, reproductive B

WHO WAS THE PRESIDENT IN THE UNITED STATES IN 1600's

Need to confirm that I did work correctly. y-3=3 (x+1) Slope=3 Point passes through (1,-3) Rewritten in slope intercept=y=3x+6 Y int= (0,-6) X int=(1,0) Rewritt

Is (0,0) a solution of the system y>x and x+y>0? A: Yes, because (0,0) is the point of intersection of the two boundary lines of this system B: No, becaus

If 3/2 ÷ 1/4 = n, then n is between: A. 1 and 3 B. 3 and 5 C. 5 and 7 D. 7 and 9

An oil embargo on the part of these two nations helped to force Japan into attacking the United States.

Express 72 as a product of prime numbers by completing the factor tree

taskmasters taskmasters · Answer 1 · 2017-02-06T14:36:39+01:00

Let x be the number of hours that Elizabeth volunteered in the hospital per week. With this representation, Katie volunteered for x + 3 hours per week and Siobhan volunteered for x - 1 hours per week. In three weeks, the equation would be,
3 (x + 3) = 3x + 3 (x - 1)
The value of x from the equation is,
x = 4
Therefore, Elizabeth volunteered for 4 hours per week, Katie for 7 hours a week and Siobhan for 3 hours a week. Multiplying all these values by 3 would give the amount of time they spent in hospital for 3 weeks.