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loris [4]
3 years ago
7

How do I solve this?

Mathematics
1 answer:
kobusy [5.1K]3 years ago
3 0

Answer:

3q^2/5p^4

Step-by-step explanation:

any variable/# w/a negative exponent is also 1/x^#

ex: p^-2 = 1/p^2 -> 9q^5/15p^4q^3

When dividing, you're subtracting the exponents

ex: q^5/q^3 = q^5-3 -> q^2

Lastly, simplify 9/15 to 3/5 -> 3q^2/5p^4

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Brilliant_brown [7]

Answer:

an exponential equation has the form y=ar^x where y=final amount, a=initial amount, r=rate, and x=time, in this case

y=200(1.18)^x

Step-by-step explanation:

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2 years ago
Another day. Another question... :)
lutik1710 [3]

im not sure but its 80 or 65



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3 years ago
there are 18 boys and 12 girl in math class. what is the ratio of girls to total students. A. 18:30 B. 12:30 C. 30:12 D. 30:18 2
zmey [24]

Answer:

1.  B

2. B and C

3.C

4.B the answer is 238 but i guess the rounded

Step-by-step explanation:

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3 years ago
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hram777 [196]

Answer:

it a poster what do you need help with

Step-by-step explanation:

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4 0
2 years ago
The equation of liner is y = -x - 6. Line s includes the point (-1, -3) and is parallel to line
Reptile [31]

Answer:

90 hardcover books

Step-by-step explanation:

We can solve this by setting up a couple of equations.

Let's allow x to represent the number of paperbacks Tim owns, and allow y to represent the number of hardcover books he owns.

Using the information in the question, we can write the equations:

1)x = 4y-3

2) x+y=447

Let's rearrange equation 1 so that it is in standard form:

x-4y=-3

And then let's multiply equation 2 by 4 so that we can cancel out y when we solve the system of equations:

4(x+y=447)

4x+4y=1,788

Then we can add the two equations and solve for x:

  1) x-4y=-3

+ 2)4x+4y=1,788

------------------------------------

5x=1,785

x=357

So now we now the number of paperback books Tim has is 357. Let's plug this into one of the original equations to solve for the number of hardcover books (y):

357+y=447

y=90

And now we know that Tim owns 90 hardcover books.

4 0
2 years ago
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