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SOVA2 [1]
3 years ago
9

Find the difference.(2n - 9) - 5(-2.4n + 4) =​

Mathematics
1 answer:
MArishka [77]3 years ago
5 0

Answer:

14n - 29

Step-by-step explanation:

First you'd distribute in the parentheses by -5. -5 × -2.4n and -5 × 4 which you would get 12 and -20.

Then, bring everything down and combine like terms. 2n + 12n = 14n || -9 - 20 or -9 - (-20) = -29. 14n - 29 is the lowest you can simplify because you can subtract a variable and a constant together.

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The solution to an inequality is graphed on the number line.
Valentin [98]

The correct answer is option B which is {x | x ≤ 4.5}

<h3>What is a number line?</h3>

A number line is a representation of a graduated straight line used to represent real numbers in introductory mathematics.

Because the arrow is pointing to the left, the answer to the solution set needs to be less than the number the dot is on.

A solid dot on a number means that that number is included in the solution set.

In the picture the solid dot is on 4.5, so the solution set needs to be equal to or less than 4.5.

Therefore the correct answer is option B which is {x | x ≤ 4.5}

To know more about number lines follow

brainly.com/question/4727909

#SPJ1

6 0
2 years ago
Simplify 4x+5/6x^2-x-12 subtract 5x/6x^2-x-12
neonofarm [45]
<span>4x+5/6x^2-x-12 - (5x/6x^2-x-12)
= (4x + 5 - 5x)/(</span>6x^2-x-12)
= (-x + 5) / (2x - 3)(3x +4)
<span>
answer

       -x + 5
---------------------
</span>  (2x - 3)(3x +4)
7 0
3 years ago
Write an expression:<br>a) 4 less than twice a<br>number<br>11<br>Gra<br>ine<br>a)<br>e​
Sergio [31]

Answer:

2x - 4.

Step-by-step explanation:

4 less than twice a number is the same thing as a number times 2 minus 4. Let's say that the number is represented by <em>x</em>.

2 * x - 4 = 2x - 4.

Hope this helps!

7 0
4 years ago
A line intersects the point (3,-4)and has a slope of 17 .what is the slope - intercept equation for this line?
vladimir1956 [14]

Answer:

The slope - intercept equation for this line is y = 17x - 55

Step-by-step explanation:

The general form of the slope-intercept form is

y = mx +b

where m is the slope and b is the y-intercept.

We are given slope m = 17

we need to find b the y-intercept.

To find y-intercept we would use point(3,-4) and formula

y = -4

x = 3

m = 17

b=?

y = mx + b

-4 = (17)(3) + b

-4 = 51 + b

b = -4 -51

b = -55

So, y-intercept is -55

The slope - intercept equation for this line is y = 17x - 55

3 0
3 years ago
A bottle fruit juice holds 1.89L. If shakira bought almost 6L of fruit juice, how many bottles did she buy
anyanavicka [17]
Since the question is asking how many bottles Shakira bought that was ALMOST 6L, she bought about 3 bottles.

6.00 / 1.89= 3.17460317= 3.175
Liters/ Bottle of Juice Amount

To check your work, multiply 3.175 by 1.89, you’d get 6.00075, about 6L.

The question is asking ALMOST, so it can’t be exact, so uyour answer would instead be 3.
3• 1.89=5.67L
3 0
3 years ago
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