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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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olga nikolaevna [1]

coordinates of b'a'c are

A:(-5,6)

B:(-5,10)

C:(-3,8)

ANswers of ' are

A'(-6,5)

B'(-10,5)

C'(-8,3)

hope this helped

3 0
3 years ago
Read 2 more answers
Vector u has a magnitude of 5sq rt 3 feet and is directed due west. Vector v has a magnitude
Vikki [24]

The magnitude and the direction angle for  the resultant vector are 10N and 120degrees respectively

The formula for calculating the resultant vector is expressed as:

R^2 = u^2 + v^2\\R =\sqrt{u^2+v^2}

Given the following distances:

u = -5√3 feet (west direction)

v = 5 feet

Substitute the given values into the formula above;

R=\sqrt{(5\sqrt{3} )^2+5^2} \\R=\sqrt{(25 \times 3)+25}\\R=\sqrt{75 + 25}\\R=\sqrt{100}\\R = 10 feet

The magnitude of the resultant vector is 10feet

Get the direction:

\theta = tan^{-1}\frac{y}{x} \\\theta = tan^{-1}\frac{5}{-5\sqrt{3} }\\\theta =tan^{-1}\frac{-1}{\sqrt{3} }\\\theta = -60^0

Since tan is negative in the second quadrant, hence;

\theta = 180 - 60\\\theta = 120^0

Hence the magnitude and the direction angle for  the resultant vector are 10N and 120degrees respectively.

Learn more here: brainly.com/question/5177683

7 0
3 years ago
The length of a rectangle is 11 in. longer than its width. The perimeter of the rectangle is 86 in.
aliina [53]

Let the width = x then length = x + 11 inches


Perimeter of a rectangle = 2*width + 2*length so we have the equation:-

( letting P = perimeter , L = length and W = width)

P = 2L + 2W

86 = 2(x + 11)) + 2x

86 = 4x + 22

4x = 86-22 = 64


x = 64 / 4 = 16 inches


Therefore the length of the rectangle = 16 + x


= 16 + 11 = 27 inches Answer

4 0
3 years ago
Read 2 more answers
Write an algebraic expression for:<br>The product of 9 and x added to 101. math home work online​
aksik [14]

Answer:

Algebraic Expression is 9x + 101

4 0
3 years ago
Can someone help with finding the coordinates and particular PART B.
mestny [16]

Happy New Year from MrBillDoesMath!

Answer:

Part A:

 point   \ coordinates \ quadrant:

 I            (1,2)                  1

 L           (-4,2)                2

 K          (-4,0)                does not belong to any quadrant

 J           (3,-1)                4

 M         (4,-4)                4


Part B:

Point K = (-4,0) lies on the x-axis so reflecting it about the x-axis gives the  same point. In other words, the "reflected" point has coordinates  (-4,0)

 

Part C:

L = (-4,2). Reflecting it about the y-axis gives the point (4,2)


Thank you,

MrB

7 0
3 years ago
Read 2 more answers
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