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ira [324]
3 years ago
13

True or False:

Mathematics
2 answers:
andrezito [222]3 years ago
8 0

Step-by-step explanation:

LHS = 5x+y =5(1)+2= 5+2= 7

RHS = 7

since LHS= RHS

LHS = 7x-2y =7(1)-2(2)=7-4=3

RHS = 3

since LHS=RHS

(1, 2) is a solution to the following system of equations.

True

Nesterboy [21]3 years ago
6 0

Hi there!  

»»————- ★ ————-««

I believe your answer is:  

A) True

»»————- ★ ————-««  

Here’s why:  

  • I have used a graphing program to graph the lines given.
  • When they are graphed, the lines intercept at the point (1,2). This means that it is a solution to the system, and the given statement is true.
  • See the graph attached.

»»————- ★ ————-««  

Hope this helps you. I apologize if it’s incorrect.  

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Complementary angles mean all 3 angles equal how many degrees?​
Montano1993 [528]

Answer:

Two Angles are Complementary when they add up to 90 degrees (a Right Angle)

Step-by-step explanation:

Please mark Brainliest :)

3 0
3 years ago
Bernice wants to buy two
Olegator [25]

Answer:

$3.72

Step-by-step explanation:

7.75*2=15.5

15.5+0.78=16.28

20-16.28=3.72

3 0
2 years ago
Read 2 more answers
Which equation is true for x = 6? A) 2x + 5 = 25 B) 3x + 5 = 17 C) 5x − 18 = 7 D) 6x − 10 = 26
Anit [1.1K]
D is the answer.
6×6-10=26
4 0
3 years ago
4. A video club costs $20 to join. Each video that is rented costs $2.25. Let v represent the number of videos.
shepuryov [24]

Answer:

B.

Step-by-step explanation:

$2.25 is the cost of each video that is rented, so $2.25 times v (or 2.25v) represents the cost of 'v' videos.

$20 is the constant, as it costs $20 to join the club. Since this doesn't change, it is the constant.

So, we would have the equation:

f(v) = 2.25v + 20

f(v) is the total cost.

B is your answer because it is the only one with the correct equation.

Hope this helps!

8 0
2 years ago
The sum of two numbers is 53 and the difference is 27. What are the numbers?
ikadub [295]

Answer:

The numbers are 39 and 14.

Step-by-step explanation:

Equation 1, sum of the numbers:

 

x  +  y   =  53

 

Equation 2, difference of the numbers:

 

x  -  y  = 25

 

System of equations:

 

x  +  y  =  53

x  -  y   =  25

----------------

2x = 78

 

x = 39

 

Solve for y:

 

39  +  y  = 53

 

y  =  14

 

The numbers are 39 and 14.

8 0
2 years ago
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