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Jobisdone [24]
2 years ago
11

if 5 kids are reading books in the library and they're are 12 kids and the other kids want to read to but it takes 33 minutes to

read a book and it is 3pm and it closes at 5pm how many kids will get to read out of the 12
Mathematics
1 answer:
mixas84 [53]2 years ago
4 0

Answer:

the answer is 6

Step-by-step explanation:

because 33 minutes to 5pm is 76 min so you divide 76 by 12 so its 6

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vfiekz [6]
<h2>x - 2y = -4</h2><h2>2x + y = 7</h2><h2 />

To solve this system of equations by addition, our first goal is to cancel

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However, if we add these two equations together right away, nothing

will cancel so we need to set things up so a variable will cancel.

Notice that we have an 2x in our second equation.

If we had a -2x in our first equation, then the x's would cancel out.

In order to create a -2x in the first equation, we simply

multiply both sides of the first equation by -2.

So we have (-2)(x - 2y) = (-4)(-2) which can be rewritten as -2x + 4y = 8.

Now rewrite both equations, as shown below.

<h2>-2x + 4y = 8</h2><h2>2x + y = 7</h2><h2 />

Now when we add the equations together, the x terms

will cancel out and we're left with 5y = 15.

Dividing both sides by 5, <em>y = 3</em>.

To solve for x, plug a 3 in for y in either one of our 2 original equations.

So let's go with our second equation.

Plugging a 3 in for y, we get 2x + (3) = 7.

Now subtract 4 from both sides to get 2x = 4.

Dividing both sides by 2, we fid that <em>x = 2</em>.

Since x = 2 and y = 3, our answer is the ordered pair (2, 3).

5 0
3 years ago
Determine, without graphing​, whether the graphs of the given equations are​ parallel, perpendicular, or neither. Explain your r
Inessa05 [86]

The graphs of the given equations are parallel.

<h3>What is the slope-intercept form of a line?</h3>

The slope-intercept form of a line is y = mx +c where m is the slope of the line and c is the y-intercept.

The given equations are y = x +10 and y = x+5.

The equations are in the slope-intercept form of y = mx +b.

Therefore, the slopes of both lines are 1.

Two lines are parallel if they have the same slope.

Therefore, the graphs of the given equations are parallel.

To learn more about the slope-intercept form of a line, click here:

brainly.com/question/9682526

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8 0
1 year ago
When Royal looked out at the Walmart parking lot, he noticed that for every 1 Lamborghini, there were 5 other types of vehicles.
Rufina [12.5K]

34.8

i dint understand it is this for school?

7 0
3 years ago
The range of the function f(x) = x + 5 is {7, 9). What is the function's domain?​
Maru [420]

Answer:

(2,4)

Step-by-step explanation:

The range is the y values

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Let y=7

7 =x+5

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2=x

Let y= 9

Subtract 5

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The domain is (2,4)

8 0
3 years ago
Patty has 20$ to spend on gifts for her friends.her mother gives her 5$ more .if each gift costs 5$ , how many gifts can she buy
nevsk [136]
She can buy 5 gifts 
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7 0
2 years ago
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