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lyudmila [28]
3 years ago
6

ASAP please help meeeeeeeeeeee

Mathematics
2 answers:
kirill115 [55]3 years ago
8 0

Answer:

-17/20

Step-by-step explanation:

topjm [15]3 years ago
8 0

Answer:

-17/20

Step-by-step explanation:

-1/4 equals -1/4 and +-3/5 equals -3/5

-1/4 -3/5 equals -5/20 -12/20

-17/20 is your answer

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Factor the polynomial.
dmitriy555 [2]

Answer:

The answer is B.

Step-by-step explanation:

Hope this helps! Have an Amazing day!!

3 0
3 years ago
Five times the sum of some mumber plus 3 is equal to 8 times the number minus 9
Sergio [31]
Let's represent the unknown number with Y
So it says 5 times the sum of Y plus 3 equals 8 times Y minus 9
That is represented as;
5(Y+3)=8Y-9
First of all, multiply 5 by what is in the bracket. That will be 5Y+15
(5 times Y is 5Y and 5 times 3 is 15)
Therefore;
5Y+15=8Y-9
Collect like terms. So -9 will go over the equality sign to become +9. The same applies to 5Y
15+9=8Y-5Y
24=3Y
Divide both sides by 3
24 divided by 3 is 8. So Y= 8
The number is 8 which is B
8 0
3 years ago
What's the radius of a circle who's circumference is 135.648
xeze [42]
Circumference=diamter times pi
diamter=2 times radius
circumference=radius times 2 times pi
circunference=135.648
aprox pi to 3.14
subsitute
135.648=radius times 2  times 3.14
135.648=radius times 6.28
divide both sides by 6.28
21.6=radius
aswe ris radous=21.6 units
6 0
3 years ago
Read 2 more answers
Jamie has $20 to spend at a carnival on games and rides. Games cost $1. Rides are $1 each. Write an equation to represent the re
UkoKoshka [18]

Answer: x+y=20

Step-by-step explanation:

8 0
3 years ago
Simplify the complex fraction
andrew11 [14]

Answer:

The simplest form is 2(3x - 7)/x(x³ + 4)

Step-by-step explanation:

* Lets revise how can divide fraction by fraction

- To simplify (a/b)/(c/d), change it to (a/b) ÷ (c/d)

∵ a/b ÷ c/d

- To solve it change the division sign to multiplication sign and

 reciprocal the fraction after the sign

∴ a/b × d/c = ad/bc

* Now lets solve the problem

∵ \frac{\frac{3x-7}{x^{2}}}{\frac{x^{2}}{2}+\frac{2}{x}}

- Lets take the denominator and simplify by make it a single

 fraction, let the denominator of it 2x and change

 the numerator

∴ \frac{x^{2}}{2}+\frac{2}{x}=\frac{x(x^{2})+2(2)}{(2)(x)}=\frac{x^{3}+4}{2x}

∴ The fraction = \frac{\frac{3x-7}{x^{2}}}{\frac{x^{3}+4}{2x}}

* Now lets change it by (up ÷ down)

∴ \frac{3x-7}{x^{2}} ÷ \frac{x^{3}+4}{2x}

- Change the division sign to multiplication sign and reciprocal

 the fraction after the sign

∴ \frac{3x-7}{x^{2}} × \frac{2x}{x^{3}+4}

∴ \frac{(2x)(3x-7)}{(x^{2})(x^{3}+4)}

- We can simplify x up with x down

∴ \frac{2(3x-7)}{x(x^{3}+4)}

* The simplest form is 2(3x - 7)/x(x³ + 4)

5 0
3 years ago
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