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lord [1]
3 years ago
11

What is the solution of the following system?

Mathematics
1 answer:
erica [24]3 years ago
8 0

Answer:

The answer to your question is: both lines are the same.

Step-by-step explanation:

                                   

                                             3x + 3y = 10

                                            -9x -9y = -30

Elimination method

                                            9x + 9x = 30

                                           -9x -  9y = -30

                                              0     0      0

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Is DEF a right triangle? True or false
umka2103 [35]
Short answer = false
Remark

If it is a right triangle, it will obey the Pythagorean Equation. a^2 + b^2 = c^2. Let's see if it does.

Equation
a^2 + b^2= c^2
c must be the longest line. (Hypotenuse)

Givens
a = 24
b = 17
c = 40

Sub and Solve
a^2 + b^2 = c^2
17^2 + 24^2 = c^2 [We'll see if this comes out to 40]

289 + 576 = c^2
865 = c^2 which is no where near what 40^2 equals. 40^2 = 1600

Short answer False

Square root of 865 = (865)^1/2 = 29.4
5 0
4 years ago
What is the selling price of an item if the original cost is $784.50 and the makeup on the item is 6.5%
kolezko [41]

I think what you meant to type is "markup".  If the markup is 6.5%, we need to increase the cost by that amount.  To find 6.5% of a number we convert it to a decimal, .065, and we add 1.00, to get 1.065.  The 1, when multiplied, gives us the original amount, and the .065 gives us the additional amount.  We multiply that by 784.5.  784.5 x 1.065 = 835.49.  The other way to do it is to just multiply by 0.065, and you get 784.5 x 0.065 = 50.99, then add it to the original amount, 784.5 + 50.99 = 835.49.

3 0
3 years ago
Read 2 more answers
What is the area of the triangle below
Sveta_85 [38]

14

Step-by-step explanation:

Area of a triangle = 1/2 ×base ×height

= 1÷2 ×(7×4)

=1÷2 ×28

=14

5 0
4 years ago
1/7 x 6 lol help pls
amm1812

Answer:

Hi there! the answer is: <u>0.857</u>

<u></u>

Step-by-step explanation:

1/7 x 6 = 0.85714285714 but you can ALWAYS shorten that for your answer by doing <u>0.857!</u>

<u></u>

Hope this helped! please mark me brainliest if possible

3 0
3 years ago
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S_A_V [24]

Answer:$.55

Step-by-step explanation:

An important thing to know is that a dozen is equal to 12.

12x= 6.60

/12     /12

x=.55

3 0
3 years ago
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