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FrozenT [24]
3 years ago
10

Find the value of x and y (please explain)

Mathematics
1 answer:
katovenus [111]3 years ago
7 0

Answer:

x=55,y=20

Step-by-step explanation:

180-75=105

2x-5=105

2x=110

x=55

4x+25=105

4y=80

y=20

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Simplify -12.5 - (-4.8)
Elan Coil [88]

Answer: -17.5

Step-by-step explanation:Use this rule:

1. -a-b=-(a+b)−a−b=−(a+b).

-(12.5+4.8)−(12.5+4.8)

2.Use the algorithm method.

1  

1 2 . 5

+  4 . 8

1 7 . 3

3.After simplification, we have:

-(12.5+4.8)=-17.3−(12.5+4.8)=−17.3

4. Therefore, -12.5-4.8=-17.3−12.5−4.8=−17.3.

-17.3−17.3

4 0
3 years ago
Please help, photo attached.
steposvetlana [31]

The zeroes of the polynomial functions are as follows:

  • For the polynomial, f(x) = 2x(x - 3)(2 - x), the zeroes are 3, 2
  • For the polynomial, f(x) = 2(x - 3)²(x + 3)(x + 1), the zeroes are 3, - 3, and -1
  • For the polynomial, f(x) = x³(x + 2)(x - 1), the zeroes are -2, and 1

<h3>What are the zeroes of a polynomial?</h3>

The zeroes of a polynomial are the vales of the variable which makes the value of the polynomial to be zero.

The polynomials are given as follows:

f(x) = 2x(x - 3)(2 - x)

f(x) = 2(x - 3)²(x + 3)(x + 1)

f(x) = x³(x + 2)(x - 1)

For the polynomial, f(x) = 2x(x - 3)(2 - x), the zeroes are 3, 2

For the polynomial, f(x) = 2(x - 3)²(x + 3)(x + 1), the zeroes are 3, - 3, and -1

For the polynomial, f(x) = x³(x + 2)(x - 1), the zeroes are -2, and 1

In conclusion, the zeroes of a polynomial will make the value of the polynomial function to be zero.

Learn more about polynomials at: brainly.com/question/2833285

#SPJ1

5 0
2 years ago
Use the equation 1/2 (x - 4) = 1/3x + 2
Anon25 [30]

Answer:

1/2(x-4)= 1/3x+2

6x1/2(x-4)=6x1/3x+2x6

3(x-4)=2x+12

3x-12=2x+12

3x-2x=12+12

x=24

5 0
3 years ago
Read 2 more answers
I’m not really sure how to do this but if someone could please help with explanation on how to do it thank you
masya89 [10]

Answer: a because it’s using the commutative property of addition meaning it’s the same mathematical statement, it’s just moved around

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Write a numerical expression for each verbal phrase.
Nookie1986 [14]

Answer:

Option B. 16-8

Step-by-step explanation:

Let

z ------> the number of apple left

x -----> the total number of apples

y -----> the number of apples sold

we know that

The numerical expression of the phrase " the number of apples left if eight out of the sixteen apples have been sold" is equal to subtract the number of apples sold from the total number of apples

so

z=x-y

we have

x=16 apples

y=8 apples

substitute

z=16-8

5 0
3 years ago
Read 2 more answers
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