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Anna007 [38]
3 years ago
12

Find the values of the variables in this kite. Enter your answer and show all the steps that you used to solve this problem.

Mathematics
1 answer:
guapka [62]3 years ago
5 0

<em>HERE'S</em><em> </em><em>YOUR</em><em> </em><em>ANSWER</em><em>.</em><em>.</em><em>.</em>

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Look at this system of equations.<br> 4x+3y=33<br> 2x+3y=21<br> What is the value of x+y?
Maurinko [17]

Answer:

x = 6

y = 3

x + y = 9

Step-by-step explanation:

(Step 1)

Isolate one of the variables in one of the equations. This will allow you to solve by substitution in the following steps.

2x + 3y = 21                             <----- Original equation

3y = -2x + 21                            <----- Subtract 2x from both sides

y = (-2/3)x + 7                          <----- Divide all terms by 3

(Step 2)

Substitute the new equation into the untouched equation and isolate the "x" variable.

4x + 3y = 33                                 <----- Original equation

4x + 3((-2/3)x + 7) = 33                <------ Substitute manipulated equation

4x - 2x + 21 = 33                          <------ Multiply 3 by terms in parentheses

2x + 21 = 33                                 <------ Subtract terms with variables

2x = 12                                         <----- Subtract 21 from both sides

x = 6                                             <----- Divide both sides by 2

(Step 3)

Plug the value of "x" into one of the equations to find the value of "y".

4x + 3y = 33                               <----- Original equation

4(6) + 3y = 33                             <----- Plug 6 in for "x"

24 + 3y = 33                               <----- Multiply

3y = 9                                         <----- Subtract 24 from both sides

y = 3                                           <----- Divide both sides by 3

(Step 4)

Since you now know the value of both variables, you can add them together to find your final answer.

x = 6

y = 3

x + y = ?

6 + 3 = ?

9 = ?

3 0
2 years ago
What is f(-4) if f(x)=|7x-3|
MrRissso [65]
Substitute the given into the function

f(-4) = |7(-4) - 3|
now solve
f(-4) = |-28 - 3|
f(-4) = | -31| 
the absolute value of |-31| is 31
so, 
f(-4) = 31

Hope this helps :)
8 0
3 years ago
Read 2 more answers
Hi! I would really appreciate it if you can help me with this problem.
miss Akunina [59]
GCF: 2v5
2v5(4v+1+5v4)
7 0
3 years ago
write an inequality for the description of: ten times a number increased by four is no more than twenty five
Xelga [282]
10x +4 </ 25 (the </ is a less than or equal to sign)
3 0
3 years ago
Plsssssssss help me in this i need it asap ill give brainly
egoroff_w [7]

Answer:

16

Step-by-step explanation:

7 0
3 years ago
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