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Natalka [10]
3 years ago
5

It takes a printer 6 hours to print the class schedules for all of the students in a college. A faster printer can do the job in

4 hours.
How long in hr) will it take to do the job if both printers are used?
Mathematics
1 answer:
poizon [28]3 years ago
3 0

The number of hours that it'll take both printers to do the job is 2.4 hours.

<em>Number of hours used by printer A = 6 hours</em>

<em>Number of hours used by printer B = 4 hours </em>

<em />

Therefore, the number of hours that'll be used by both printers will be calculated thus:

1/6x + 1/4x = 1

Using 12 as the LCM

2x + 3x = 12

5x = 12

Divide both side by 5

5x/5 = 12/5

x = 2.4 hours

Read related link on:

brainly.com/question/25115037

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Oliga [24]

Answer:

D) Scalene

Step-by-step explanation:

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Consider the following statement. Fourteen more than 12 times the number equals 37 less than 11 times a number. a. Write an equa
Solnce55 [7]
12x + 14 = 11x - 37

12x - 11x = -37 - 14
x = -51

you put all the x's on one side and everything else on the other side, and then solve the equation by simplifying 
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A. Determine the distance between the ordered pairs given below. Round off your answers to the nearest hundredths.
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Step-by-step explanation:

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3 years ago
If the perimeter is 112,the width is 6times to get the length.what is the length?and the width?solve for an area
Romashka [77]

Answer:

The length of rectangle is 8  unit

The width of rectangle is 48  unit

The Area of rectangle is 384 unit²

Step-by-step explanation:

Given as :

The perimeter of rectangle = P = 112  unit

The width is 6 times the length

Let The length of rectangle = L  unit

Let The width of rectangle = W   unit

So, W = 6 × L      .........1

Let The Area of rectangle = A unit²

<u>Now, According to question </u>

∵ Perimeter of rectangle = 2 × Length + 2 × Breadth

Or, P = 2 × L + 2 × W

Or, 112 = 2 × L + 2 ×  6 × L              (from eq 1 )

Or, 112 = 2 × L + 12 × L

Or, 112 = 14 L

∴  L = \dfrac{112}{14}

i.e L = 8

So, The length of rectangle = L = 8  unit

Put the value of L into eq 1

∵ W = 6 × L

So, W = 6 × 8

i.e W = 48

So, The width of rectangle = W = 48  unit

<u>Again</u>

∵ The Area of rectangle = (Length × Width)  unit²

Or, A = L× W

Or, A = 8 × 48

i.e A = 384 unit²

So, The Area of rectangle = A =  384 unit²

Hence , The length of rectangle is 8  unit

The width of rectangle is 48  unit

The Area of rectangle is 384 unit²    Answer

7 0
3 years ago
A system of equations is created by using the line represented by 2 x 4 y = 0 and the line represented by the data in the table
Marta_Voda [28]

Solution to a system of equation is values of variables true for all equations of that system.The x-value of solution to the given system is 2

<h3>How to find the solution to the given system of equation?</h3>

For that , we will try solving it first using the method of substitution in which we express one variable in other variable's form and then you can substitute this value in other equation to get linear equation in one variable.

If there comes a = a situation for any a, then there are infinite solutions.

If there comes wrong equality, say for example, 3=2, then there are no solutions, else there is one unique solution to the given system of equations.

<h3>What is the equation of a line passing through two given points in 2 dimensional plane?</h3>

Suppose the given points are (x_1, y_1) and (x_2, y_2) , the n the equation of the straight line joining both two points is given by

(y - y_1) = \dfrac{y_2 - y_1}{x_2 - x_1} (x -x_1)

The first equation is 2x + 4y = 0

Since the second equation of line contains points given, let we consider two points,

(x_1, y_1) = (-1,8)\\(x_2, y_2) = (3, -4)

Then, the equation of line is found as:

(y - y_1) = \dfrac{y_2 - y_1}{x_2 - x_1} (x -x_1)\\\\(y - 8) = \dfrac{-4-8}{3-(-1)}(x - (-1))\\\\y = -3(x + 1) + 8\\\\3x + y = 5

Thus, the system of equations is

2x + 4y = 0\\3x + y = 5

From second equation, getting y in terms of x(since its easy as y has 1 as coefficient), we get:

3x + y = 5\\y = 5 - 3x

Putting this value of y in first equation, we get:

2x + 4y = 0\\\\2x + 4(5-3x) = 0\\20 = 10x\\x=  2

Putting this value of x in expression  for y, we get:

y = 5 - 3x = 5 - 6 = -1

Thus, the solution to the system of equations obtained is (x,y) = (2,-1)

Thus, The x-value of solution to the given system is 2

Learn more about system of equations here:

brainly.com/question/13722693

4 0
3 years ago
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