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Sonbull [250]
2 years ago
6

Find the missing x value for for question 14

Mathematics
1 answer:
zloy xaker [14]2 years ago
4 0

Answer:

x=12 but who knows maybe

Step-by-step explanation:

if we are trying to say those lines are equal length than surely the equations must be equal value otherwise they aren't equal so we can probably set them equal to each other and solve for x right? 2x+6=3x-6 subtract 6. 2x=3x-12. subtract 3x. -1x=-12. divide by -1 so x=12.

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Roster method of A = {x | x is an odd number and 20 < x < 30}
Sunny_sXe [5.5K]

A "roster" here is essentially a version of the set with all of elements listed out. Here, those elements are all of the odd numbers between 20 and 30, so our list would be

{21, 23, 25, 27, 29}

3 0
3 years ago
Solve the system of equations y = 2x + 3 and 4x - 2y = -6 using a graphical method.
emmasim [6.3K]

Answer:

-1

Step-by-step explanation:

You are asked to solve this set by substitution. Note that the first equation defines

the value of y in terms of x. Therefore, you can use the right side of this equation

(2x + 3) as a substitution for y in the second equation. When you substitute 2x +3 for y

in the second equation, the result is:

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2x + 3 = 4x + 7

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Let's set the goal of getting all the terms that contain x isolated on the left side of

the equal sign and all the constants by themselves on the right side. Begin by getting rid

of the +3 on the left side by subtracting 3 from the left side. But if you subtract

3 from the left side you must also subtract 3 from the right side. These subtractions

result in the following sequence:

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2x + 3 - 3 = 4x + 7 - 3

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Combining numbers on the left side and on the right side simplifies the equation to:

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2x = 4x + 4

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Now, in a similar fashion, let's get rid of the 4x on the right side by subtracting

4x from the right side. When we do this subtraction, to keep the equation in balance

we must also subtract 4x from the left side. This results in:

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2x - 4x = 4x - 4x + 4

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On both sides of the equation combine terms containing x to get:

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-2x = 4

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Finally, solve for x by dividing both sides of the equation by -2 because -2 is the multiplier

of x. This results in:

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x = 4/-2 = -2

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So now that we know x = -2, we can return to either one of the original equations  

in the equation set and substitute -2 for x. Then we can solve for y. Let's return

to the first equation and substitute -2 for x. This begins with:

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y = 2x + 3

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Then substituting -2 for x gives:

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y = 2*(-2) + 3 = -4 + 3 = -1

7 0
2 years ago
Financial Algebra 1. Unit 1: Simple and Compound Interest Quiz A..
Nikolay [14]

Answer:

$56,558.1

Step-by-step explanation:

This is a question on compound interest.

The formula to calculate the Total Amount based on compound interest is given as:

A = P( 1 + r/n) ^nt

A = Total or Final amount in the account after t years

P = Principal/ Initial amount invested=$35,000

r = Interest rate = 12%

n = compounding Frequency = daily = using 30 days in a month = 30 × 12 = 360 days

t = time in years = 4

A = $35,000( 1 + 0.12/360)^360 × 4

A = $56558.08

Approximately to the nearest cent ≈ A = $56,558.1

Therefore, Priscilla should be expecting $56,558.1 in the account after 4 years.

8 0
2 years ago
Construct the triangle dce using as coordinates of its vertices points d(−4, 0), c(0, −2), and e(5,3). Find the coordinates of i
Naily [24]

Answer:

So, coordinate of intersection point  = (2,0)

Explanation:

Given a triangle DCE whose coordinate of the vertex are :

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Find the intersection point of CE and x-axis

Put y = 0 to find the x-intercept

0 + 2 = x

x = 2

So, coordinate of intersection point  = (2,0)

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