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3 years ago

15

The student population at a middle school in June, 2020 was 1678. In September, 2021, the student population was 1463. What is t

he percent of change

1 answer:

HACTEHA [7]3 years ago

6 0

Answer: -12.81% decrease

Step-by-step explanation:

1678-1463/1463 * 100 = -12.8128

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Angle m and n are 76 P Q and R are 60

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3 years ago

Equation Practice with vertical angles <br><br><br>Please solve for x

Harrizon [31]

Answer:

x=20

Step-by-step explanation:

These angles are vertical angles so they are equal.

7x-99 = 2x+1

Subtract 2x from each side

7x-2x -99 = 2x-2x+1

5x -99 =1

Add 99 to each side

5x-99+99 = 1+99

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Divide each side by 5

5x/5 =100/5

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3 years ago

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gtnhenbr [62]

$3x - 4y = - 6 \\ - 2x + y = 1$

<em>The Ordered pair of solution will be (x,y)=(2,3)</em>

$\red{ \rule{35pt}{2pt}} \orange{ \rule{35pt}{2pt}} \color{yellow}{ \rule{35pt} {2pt}} \green{ \rule{35pt} {2pt}} \blue{ \rule{35pt} {2pt}} \purple{ \rule{35pt} {2pt}}$

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Solve the second equation for y
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3 years ago

Your supervisor asks you to figure out how many sets of bed linens can be washed in an 8 hour shift. Here are the facts you know

Anit [1.1K]

Answer:

100

Step-by-step explanation:

There are two washers to do linen washing.

We can fit only 5 sets of linens in one washer, and 45 mins are required to wash the linens.

Therefore, within 45 mins we can wash (5×2) =10 sets of lines.

If the shift is of 8 hours i.e. ( 8×60) =480 mins, then within this time the number of linen sets will be washed is (480/45)×10 = 106.67 ≈100 (Answer)

{Since the number of linen set to be washed will be multiple of 10}

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3 years ago

The sum of the speeds of two trains is

luda_lava [24]

Answer:

Train 1: 368 mph

Train 2: 358.1 mph

Step-by-step explanation:

We can write 2 equations to represent this problem.

$x+y=726.1$

$x=9.9+y$

The x represents the first train and the y represents the second train.

We can plug in x into the first equation.

$(9.9+y)+y=726.1$

$9.9+2y=726.1$

$2y=716.2$

$y=358.1$

Now that we know our y, we can find our x.

$x=9.9+y$

$x=9.9+358.1$

$x=368$

3 0

3 years ago