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3 years ago

-3.5 , 2 , -3 , -1 , -1.5 Least to greatest

Mathematics

2 answers:

FromTheMoon [43]3 years ago

7 0

Answer:

-3.5, -3, -1.5, -1, 2

Step-by-step explanation:

negatives to positives

gulaghasi [49]3 years ago

3 0

Answer:

-3.5, -3, -1.5, -1, 2

Step-by-step explanation:

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what is the value of the expression -2 (3x minus 2) + x + 9 when x equals negative 3 choices are a -16 B -2 C 28 D 34 which one

Nezavi [6.7K]

Answer:

C 28

Step-by-step explanation:

Put the given value where x is in the expression and do the arithmetic.

-2(3(-3) -2) +(-3) +9

= -2(-9 -2) -3 +9

= -2(-11) -3 +9

= 22 -3 +9

= 19 +9

= 28

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2 years ago

Find value of x such that the data set has a mean of 105: 99, 119, 106, 112; 108

Marizza181 [45]

I'm assuming that x is part of the data set, and, with x, the mean equals 105. To find the value of x, you must add all the data values together to get 544+x (you still don't know what x equals). Then put 544+x over how many days values there are, including x (there are 6). You should have 544+x/6. Now, as this is how you would calculate the mean if you knew what x was equal to, you must set it equal to the mean, since you know what it is (105). You should now have 544+x/6 = 105. You have your equation set up--now you just have to solve it. I would multiply by 6 on both sides to get rid of the 6 on the left side. You would then have 544+x = 630. I would finally subtract 544 from both sides to get x = 86. Your final answer is x = 86.

6 0

3 years ago

Apples are on sale for $3.12 per kilogram is the total cost of apples proportional to the total mass?

zloy xaker [14]

Answer:

yes

Step-by-step explanation:

(there really isn't much else to say, it's quite simple)

5 0

3 years ago

The sum of two non-zero numbers a and b equals the sum of their reciprocals. If a+b≠0, what is the product of the two numbers?

Vadim26 [7]

Answer:

ab = 1

Step-by-step explanation:

A Reciprocal of a number is a number which when multiplied by the original number yields the multiplicative number, 1.

So the reciprocal of x would be x⁻¹ or ¹⁄ₓ

The information we are given states that the sum of the two non-zero numbers a and b equals the sum of their reciprocals.

So we can write this into an equation and solve,

(See image)

Once we solve, we get the equation (ab-1)(a+b) = 0

We are given info that a+b≠0

So for the above equation to be true, ab-1 has to equal 0

For <em>this</em> to be true, the product ab must equal 1

7 0

3 years ago

0.33333333333333333333333333333333333333333333333 simplified at a fraction

USPshnik [31]

Answer:

$\frac{1}{3}$

Step-by-step explanation:

Your original number to convert is 0.333333. Let's slide the decimal point in this number to the right 1 place(s) (the same number of digits in the number 3).

If we do this, we'll get a 3.333333 (slide the decimal in the 0.333333 right 1 places, you'll get 3.333333).

So what? Well now, we have two numbers with the same repeating decimal parts, 3.333333 and 0.333333.

Now let's just work a little algebra into all of this. Let's call your original number x. And in this case, x = 0.333333. The number with the decimal point slid over can be called 10x, because 10x = 3.333333

10x = 3.33333

-x = 0.333333 $\frac{10x = 3.33333 -x = 0.333333}{9x = 3}$

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Now, solving 9x=3 for x by dividing both sides of it by 9, we'll get that x=3/9. And this is your answer.

How is this your answer? Well remember that above, x was originally set equal to 0.333333 via x = 0.333333, and now we have that x is also equal to 3/9, so that means 0.333333 = 3/9..and there's 0.333333 written as a fraction.

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<u>Simplify 3/9 into the lowest terms:</u>

$\frac{1}{3}$

4 0

3 years ago