3 years ago

7x - 18 = 10x + 3 Simplified

Mathematics

1 answer:

expeople1 [14]3 years ago

5 0

The answer to the question

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Someone help please! I'm a confoosed bab:(

Agata [3.3K]

Answer:

$\huge\boxed{A_{\triangle RST}=9units^2}$

Step-by-step explanation:

(Look at the picture).

Calculate the area of the rectangle and subtract the areas of red triangles.

The formula of an area of a rectangle:

$A_{\boxed{\ }}=a\cdot b$

We have:

$a=5,\ b=4$

substitute:

$A_{\boxed{\ }}=5\cdot4=20$

The formula of an area of a triangle:

$A_\triangle=\dfrac{a\cdot h}{2}$

substitute:

$A_1=\dfrac{3\cdot3}{2}=\dfrac{9}{2}=4.5\\\\A_2=\dfrac{2\cdot4}{2}=\dfrac{8}{2}=4\\\\A_3=\dfrac{5\cdot1}{2}=\dfrac{5}{2}=2.5\\\\A_1+A_2+A_3=4.5+4+2.5=11$

Area of ΔRST:

$A_{\triangle RST}=A_{\boxed{\ }}-(A_1+A_2++A_3)$

substitute:

$A_{\triangle RST}=20-11=9$

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Step-by-step explanation:

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enter your answer and show all the steps that you use to solve this problem in the space provided. if x+3/3 = y+2/2, then x/3 =

tatuchka [14]

Answer: y/2

Step-by-step explanation:

Since the x would equal to 3’s and the y equals to 2’s then it would basically be simplified to y/2

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Step-by-step explanation:

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