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kolezko [41]
3 years ago
10

What is the solution to the system of equations? Use the substitution method. {y=−2x+53x−4y=2 Enter your answer in the boxes.

Mathematics
1 answer:
Jet001 [13]3 years ago
6 0
We have the following system:
 y = -2x + 5
 3x-4y = 2
 Substituting y in equation 2 we have:
 3x-4 (-2x + 5) = 2
 We clear x:
 3x + 8x - 20 = 2
 11x = 2 + 20
 x = 22/11
 x = 2
 Then, we substitute x = 2 in equation 1:
 y = -2 (2) +5
 y = -4 + 5
 y = 1
 Answer:
 
The solution to the system of equations is:
 
x = 2
 
y = 1
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Answer:

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Step-by-step explanation:

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  A = 1/2bh

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Answer:

\large\boxed{C.\ (25+25\sqrt3)\ in^2}

Step-by-step explanation:

We have the square and four equilateral triangles.

The formula of an area of a squre:

A_S=a^2

a - length of side

The formula of an area of an equilateral triangle:

A_T=\dfrac{a^2\sqrt3}{4}

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SQURE:

A_S=x^2\ in^2

TRIANGLE:

A_T=\dfrac{x^2\sqrt3}{4}\ in^2

The SURFACE AREA of a square pyramid:

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Put x = 5:

S.A.=5^2+5^2\sqrt3=(25+25\sqrt3)\ in^2

7 0
3 years ago
What is the slope of the line that passes through the points (2, 8) and (6, 12)?
algol13
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3 years ago
99 POINTS! HELP
Neporo4naja [7]
<span>∠ABC ≅ ∠DEF              - given
</span><span>∠GHI ≅ ∠DEF               - given
</span>∠DEF ≅ ∠GHI               - <span>symmetric property
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8 0
3 years ago
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Please help. 15 POINTS!
inna [77]

Answer:

(A) The constant of proportionality can be found by dividing a y-value by its  

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(C) The constant of proportionality is 3.

Step-by-step explanation:

constant of proportionality

y=kx

y/x =k

y=9

x=3

k = 9/3 =3


(A) The constant of proportionality can be found by dividing a y-value by its  

corresponding x-value.

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TRUE

(B) The constant of proportionality can be found by dividing an x-value by its  

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(D) The constant of proportionality is 5.FALSE

3 0
3 years ago
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