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Inessa05 [86]
3 years ago
7

How many solutions does the following system of equations have?

Mathematics
2 answers:
sveta [45]3 years ago
8 0
X=0 and y =2 if you use substitution
Vikentia [17]3 years ago
8 0

Answer with Step-by-step explanation:

2y=5x+4

and y=3x+2

Putting equation second in equation first

⇒ 2(3x+2)=5x+4

⇒ 6x+4=5x+4

⇒ 6x-5x=4-4

⇒ x=0

Putting x=0 in second equation

⇒ y=2

Hence, the above system of equations has only one solution.

Hence, the correct option is:

C. one

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What are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m
UNO [17]

Answer:

-10.6 and ⁹/₁₀  

Step-by-step explanation:

The constants are the numbers that stand by themselves: -10.6 and ⁹/₁₀.

The <em>variables</em> are m and n.

The <em>coefficients</em> are the numbers in front of the variables: ⅖, 2.4, and 3.

7 0
3 years ago
Which ratios are equal to 64 when the scale factor is 8? Select all that apply.
Luden [163]

Answer:

The scaled surface area of a square pyramid to the original surface area.

The scaled area of a triangle to the original area.

Step-by-step explanation:

Suppose that we have a cube with sidelength M.

if we rescale this measure with a scale factor 8, we get 8*M

Now, if previously the area of one side was of order M^2, with the rescaled measure the area will be something like (8*M)^2 = 64*M^2

This means that the ratio of the surfaces/areas will be 64.

(and will be the same for a pyramid, a rectangle, etc)

Then the correct options will be the ones related to surfaces, that are:

The scaled surface area of a square pyramid to the original surface area.

The scaled area of a triangle to the original area.

5 0
3 years ago
Write a numerical expression for the verbal expression. the sum of two an four and six times eight
Trava [24]
(2+4+6)*8 hopefully that's what you are looking for
3 0
3 years ago
Can some one help me ??? Anyone ?
Leya [2.2K]
((-2)^2-4)^3+4\cdot(-5)=\\&#10;(4-4)^3+(-20)=\\&#10;0^3-20=\\&#10;0-20=\\-20
6 0
4 years ago
Which equation represents a linear function? Equation 1: y^3 = 2x +1 Equation 2: y= 3x +1 Equation 3: y= 5x^2 - 1 Equation 4: y=
Yuri [45]
the second equation is linear
8 0
3 years ago
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