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kupik [55]
4 years ago
14

Twice Jack's age plus 5 is 21. Write and solve an equation. How old is Jack?

Mathematics
2 answers:
Aleksandr-060686 [28]4 years ago
7 0
2j+5=21
2j=16
j=8

<span>Jack is 8 years old.
</span>
Hope This Helped! :3
umka2103 [35]4 years ago
5 0
8 times 2 equals 16. 16 Plus 5 equals 21.
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3 years ago
To factor 9x^2 - 4, you can first rewrite the expression as:
olga2289 [7]

Answer:

  C. (3x)^2 - (2)^2

Step-by-step explanation:

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4 years ago
Write (-5+8i)+(-5-8i) as a complex number in standard form
gizmo_the_mogwai [7]
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5 0
3 years ago
Evaluate the function:<br><br> f(x)=4x−1, find f(9)
Eddi Din [679]

Answer:

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Step-by-step explanation:

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Hope this helps!

3 0
3 years ago
X - 2y = 3<br> 5x + 3y = 2<br> The lines whose equations are shown intersect at which point?
Lady_Fox [76]

The point of intersection of the two lines is at (1,-1)

<h3>System of equation</h3>

The given system of expression is shown below

x - 2y = 3

5x + 3y = 2

The solution to the system of equation is the point of intersection

From equation 1

x = 3 + 2y

Substitute into 2

5(3+2y) + 3y = 2

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y = -1

Substitute y = -1 into 3

x = 3 + 2y

x = 3+(-2)

x = 1

Hence the point of intersection of the two lines is at (1,-1)

Learn more on system of equation here: brainly.com/question/25976025

#SPJ1

8 0
2 years ago
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