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2 years ago

Someone explain this step by step to me 1/2(c-8)=

Mathematics

1 answer:

polet [3.4K]2 years ago

4 0

Answer: c/2-4

Step-by-step explanation:

This is what I get :

1/2(c-8)

Distributed property

1/2(c) + 1/2(-8)

Do c and -8 as a fraction with denominator 1 solve across

1/2×c/1+1/2×-8/1

Here you can only divide -8by 2

C/2-8/2

To get -4

C/2-4

You can't go further

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A lamp originally sold $50. The lamp is now on sale for $37.50. Wjhat is the PERCENT markdown

zlopas [31]

Answer:

25% of 100% or 25/100

Step-by-step explanation:

37.50 is 25% of 50 trust me I did the calculations

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2 years ago

A coin is pulled from a jar and then put back in the jar. If 40 coins are pulled, enter the number of times a nickel is expected

neonofarm [45]

Answer:

20 times

Step-by-step explanation:

40 divided by 2

4 0

2 years ago

Which two values of x are roots of the polynomial below? x^2-3x+5

Gemiola [76]

Given:

Polynomial $x^2-3x+5$

To find:

The values of x.

Solution:

$x^2-3x+5=0$

Quadratic equation formula:

$$x=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}$

Here $a=1, b=-3, c=5$ .

Substitute the values in the formula, we get

$$x=\frac{-(-3) \pm \sqrt{(-3)^{2}-4 \cdot 1 \cdot 5}}{2 \cdot 1}$

$$x=\frac{3 \pm \sqrt{9-20}}{2}$

$$x=\frac{3 \pm \sqrt{-11}}{2}$

$$x=\frac{3 - \sqrt{-11}}{2} \ \text{and} \ x=\frac{3 + \sqrt{-11}}{2}$

Option E and option F are the roots of the polynomial.

The values of x are $x=\frac{3 - \sqrt{-11}}{2} \ \text{and} \ x=\frac{3 + \sqrt{-11}}{2}$ .

7 0

2 years ago

Tiva earns $48 for 6 hours of babysitting. Complete each statement if Tiva keeps earning her babysitting money at this rate. CLE

lawyer [7]

8.5
$= (48 \div 6) \times 8.5$
$8 \times 8.5$
$= 68$

$32

Perhour =8
32/8 =4 hours

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2 years ago

Read 2 more answers

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Dima020 [189]

Answer:

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2 years ago