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qwelly [4]
3 years ago
11

there are 120 children standing in a line,every third gets a rubber, every fourth child gets ruler and every fifth gets a book.

in what position is the first child that gets all 3 items?​
Mathematics
2 answers:
Kaylis [27]3 years ago
8 0

Answer:

60th position is the first child that gets all 3 items

Step-by-step explanation:

Find the LCM of 3 , 5 and 4.

Least common multiple of 3 , 4 and 5 = 3 * 4 * 5 = 60

Goshia [24]3 years ago
7 0

Answer:

3,6,9,12,

4,8,12,16,

5,10,15,

in 60th position

60is the first number that can be divided by 60/3=20 60/4=15 60/5=12

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Selecting an Instructor At a convention there are 7 mathematics instructors, 5 computer science instructors, 3 statistics instru
LiRa [457]

Answer:

11/19

Step-by-step explanation:

Firstly, we need to know the total number of instructors. This is equal to 7+5+4+3 = 19 instructors.

The probability of selecting a science instructor is 4/19

The probability of selecting a math instructor is 7/19

The probability of selecting either a science or a maths instructor is 4/19 + 7/19 = 11/19

4 0
4 years ago
Eight less then 11 times a number is 47​
Studentka2010 [4]

Answer: X = 5

Step-by-step explanation:

The correct formula to solve the problem is:

11x - 8 = 47

First, add 8 to each side.

11x = 55

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X = 5

8 0
3 years ago
How to make 5:___=40:32 an equivalent ratio
docker41 [41]

Answer:

4

Step-by-step explanation:

5 : ? = 40 : 32

40 / 5 = 8

32 / 8 = 4

5 0
4 years ago
Which function , A or B has a greater rate of change ? Be sure to include the values for the rates of change in your answer . Ex
arsen [322]
<h2>Answer:</h2>

A rate of change tells us  how one quantity changes in relation to another quantity. In a mathematical language, we can write this as follows:

Rate \ of \ Change=\frac{Change \ in \ y}{Change \ in \ x}

For linear functions. the rate of change is the slope of the line. Thus:

FOR THE TABLE:

By taking two points we can get the rate of change, so let's take (1,5) \ and \ (2,7):

ROC=\frac{y_{2}-y_{1}}{x_{2}-x_{1}} \\ \\ ROC=\frac{7-5}{2-1} \\ \\ ROC=\frac{2}{1} \\ \\ \boxed{ROC=2}

FOR THE GRAPH:

Let's take (1,1) \ and \ (2,4):

ROC=\frac{y_{2}-y_{1}}{x_{2}-x_{1}} \\ \\ ROC=\frac{4-1}{2-1} \\ \\ ROC=\frac{3}{1} \\ \\ \boxed{ROC=3}

As you can see, 3>2 so <em>the ROC of the function given by the graph is greater than the ROC of the function given by the table.</em>

3 0
3 years ago
Average movie prices in the United States​ are, in​ general, lower than in other countries. It would cost ​$81.73 to buy three t
stich3 [128]

Answer:

Step-by-step explanation:

In japan the average cost is  up from $.1200 in some change to

in Switzerland the average cost is 15.00 and some change

4 0
3 years ago
Read 2 more answers
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