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alex41 [277]
3 years ago
13

If there are 3 classrooms that each have 25 desks and there are a total of 87 students, how many more desks need to be added to

a 4th classroom, that was originally empty, so that each of the students has a desk to sit in?
Mathematics
2 answers:
Oxana [17]3 years ago
7 0

Answer:

12

Step-by-step explanation:

oksano4ka [1.4K]3 years ago
3 0
12 more seats/desk is how many more

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A new car is purchased for 16600 dollars. The value of the car depreciates at 9.75% per year. What will the value of the car be,
Ket [755]
A=16600(1-0.0975)^8
A==7,306.10
3 0
3 years ago
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The vertices of a rectangle are A(-4,-3) b(-4,-1)C(-1,-1)d(-1,-3)
Vesnalui [34]

Answer:

Step-by-step explanation:

a: A(4,-3) B(4,-1) C(1,-1) D(1,-3)

b: A(-4,3) B(-4,1) C(-1,1) D(-1, 3)

c:yes because you are just changing the direction not the shape or size

4 0
3 years ago
A car is traveling at 35 mph. If its tires have a diameter of 27 inches, how fast are the car's tires turning? Express the answe
Vladimir79 [104]

Answer:

435.73 revolutions per minute

Step-by-step explanation:

Find the circumferance of the wheel.

27 times π which is 84.823 inches

divide that by 12 to get it into feet, 7.061 feet

Divide by 5280 to get that to miles, 0.001 miles

Divide 35 by 60 to get how many miles per minute the car travels, 0.583

Divide your miles per minute by the diameter of wheel

Your answer will be 435.73 Revolutions per Minute

6 0
3 years ago
Solve for "W"<br><br> -1 &gt; 2W + 7
jeka57 [31]

-1>2W+7

-8>2w

w = -8/2 = -4

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8 0
3 years ago
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Perform the following operations and prove closure. Show your work.<br><br> (x/x+3) + (x+2/x+5)
Westkost [7]

Answer:

\frac{2(x^{2} + 5x + 3)}{(x+3)(x+5)}

Step-by-step explanation:

We need to sum the following two expressions:

\frac{x}{x+3} + \frac{x+2}{x+5}

\frac{x(x+5) + (x+2)(x+3)}{(x+3)(x+5)}

expanding the polynomial in the numerator:

\frac{2x^{2} + 10x + 6}{(x+3)(x+5)}

\frac{2(x^{2} + 5x + 3)}{(x+3)(x+5)}

This is the most simplified form we can get:

\frac{2(x^{2} + 5x + 3)}{(x+3)(x+5)}

8 0
3 years ago
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