2 years ago

Five times the sum of a number and 3 is the same as 3 multiplied by 1 less than twice the number

1 answer:

7 0

5(3+n)=3(2n-1)
15+5n=6n-3
18=n

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vesna_86 [32]

Hope i understand it right

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3 years ago

Ymorist [56]

Answer:

4.5 m

Step-by-step explanation:

The area of two similar triangles are 75 m2 and 300 m2. This gives you the scale factor of the triangles:

$\dfrac{A_{small}}{A_{large}}=k^2\Rightarrow k^2 =\dfrac{75}{300}=\dfrac{3}{12}=\dfrac{1}{4}\Rightarrow k=\dfrac{1}{2}.$

Then you can find the length of the corresponding side:

$\dfrac{side_{small}}{side_{large}}=k\Rightarrow =\dfrac{side_{small}}{9}=\dfrac{1}{2},\ side_{small}=\dfrac{9}{2}=4.5\ m.$

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m_a_m_a [10]

Answer:

Step-by-step explanation:

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2 years ago