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Norma-Jean [14]
3 years ago
7

Hey, I need some help... What is 9-3(45x + 47x) - 2 + 66

Mathematics
1 answer:
Marat540 [252]3 years ago
8 0

Answer:

55-276x

Step-by-step explanation:

To solve this question, you will have to follow some specific principles to prevent error

So to solve this we will have to follow the BODMAS rule

9-3(45x+47x)-2+66

Deal with the bracket first

3(45x+47x)

3(92x)

276x

Then back to the question

9-276x-2+66

Collect like terms

9-2+66-276x

Add comes before substration according to bodmas

9+64-276x

55-276x

This cannot be solved further because they are different from each other

Therefore the final answer is 55-276x

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Answer:

s = 14m + 458

Step-by-step explanation:

current amount = 458

14 per month

s = 14m + 458

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1 year ago
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How much candy at $1.16 a pound should be mixed with candy worth 86 cent a pound in order to obtain a mixture of 60 pounds of ca
galina1969 [7]
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2 years ago
Please review the following attachment. Thanks!
vaieri [72.5K]

Answer:

C: I and III only.

Step-by-step explanation:

We have two numbers x and y such that:

-y

And we want to determine which of the following conditions must be true.

First, let's examine the third condition. We have:

y>0

To see if this is true, let's try a negative value for y. So, let's use -7. This will give:

-(-7)

Simplify:

7

This is saying we need a number less than -7 and greater than 7.

This is impossible. So, y <em>must be</em> greater than 0.

Therefore, Condition III must be true.

Next, let's see this compound inequality visually.

Picture the following number-line:

<----------(-y)----------0----------y---------->

Whatever y is, -y is just y on the negative side.

Now, since our condition is that -y<x<y, this means that our x can be anywhere between -y and y. Namely:

<----------(-y)----------0----------y---------->

To determine our correct condition, let's picture x anywhere on the bolded lines. I'm just going to put x here...

<----------(-y)-------(x)--0----------y---------->

Now, remember the alternative definition for absolute value. Namely, the absolute value of x is also the <em>distance</em> from 0 to x. And this distance is always positive.

Since our x is between -y and y, our distance from 0 to x will always be less than the distance from 0 to either y.

Therefore, Condition I is also true.

Let's try an example. Let's let y = 9. So, -y=-9. And let's let x be between 9 and -9, say, -2. So:

<---(-9)-----(-2)--0--------(9)------>

We can see that:

|-2|=2\stackrel{\checkmark}{

Also, this example counters Condition II, as our x can indeed be negative if we desire it.

Algebraically, if we have a negative x such that:  

-y

We can divide everything by -1 to obtain:

y>x>-y

We can flip this to get:

-y

Which is our original inequality. So, Condition II does not need to be true.

So, the two conditions that <em>must</em> be true is I and III.

So, our answer is C.

3 0
3 years ago
Which expression is equivalent to - 32 ^ (3/5)
hjlf

The answer is -8

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6 0
2 years ago
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patriot [66]

Answer:

I got 32.

Step-by-step explanation:

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