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zhuklara [117]
3 years ago
14

Can anyone help with this question

Mathematics
2 answers:
timurjin [86]3 years ago
8 0

Answer:

162, sorry if this is wrong

Step-by-step explanation:

finlep [7]3 years ago
3 0
It rigt thi answer above is correct i shek
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How can you evaluate an algebraic expression
fredd [130]

Answer:

Step-by-step explanation:

In algebra we work with variables and numerals. To evaluate an algebraic expression simply means that you are going to determine the value of an expression by substituting and evaluating using the operation order.

in summary in order to evaluate an algebraic expression

  • you must identify the variable and its value
  • you will substitute the given value  for the variable
  • complete the necessary calculations

Take for example;

evaluate 2a + 4b - 2c

given that a = 2 , b = 1 , c = 5

since you already know the value of the variables you substitute them into the question

we have

2(2) + 4(1) +2 ( 5)

4 + 4 + 10

18.............. answer.

6 0
3 years ago
Which ordered pair is a solution to the inequality?
jok3333 [9.3K]

Answer:

(-3, -1/2)

Step-by-step explanation:

Plug in the numbers for x and y. If the left side of the equation is greater than the right side (0), then ordered pair is a solution to the inequality.

7 0
3 years ago
Read 2 more answers
Solve the following systems by the addition method <br><br> 4x - y =3<br> 2x+3y = 18
Taya2010 [7]
Hello :
<span>4x - y =3........ ×3
2x+3y = 18
 I'have :  12x-3y = 9
               2x +3y = 18
</span><span>by the addition method : 14 x =27
</span> x = 27/14
4(27/14)-y = 3
y = 33/7


4 0
3 years ago
I need help this math problem ​
Nastasia [14]

Answer:

x = 2

y = 5

1 = 80

2= 10

3 = 100

Step-by-step explanation:

Complementary angles add to 90.

So 5(x+14) + 2(10-y) = 90. Solve for x.

5x + 70 + 20 -2y = 90

5x - 2y = 0

Supplementary angles add to 180.

So 5(x+14) + 121-3x-3y = 180. Solve for x.

5x + 70 + 121 -3x -3y = 180

2x - 3y = -11

This creates a system of equations. Solve using elimination.

5x - 2y = 0  ------>  10x - 4y =0

2x - 3y = -11 ------> 10x -15y = -55

                           _____________

                                      11y = 55

                                         y = 5

Substitute y=5 into the equation to find x.

2x - 3(5) = -11

2x - 15 = -11

2x = 4

x=2

Find the measure of each angle by substituting x = 2 and y =5 into each angle.

7 0
3 years ago
If the radius of a circle is 5 m what is the area up to the nearest tenth
USPshnik [31]

Answer:79

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
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