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sergey [27]
3 years ago
5

What is the value of x in the drawings if we know the triangles are similar?

Mathematics
2 answers:
kobusy [5.1K]3 years ago
8 0
That would be B. 30 ft
15/3=x/6
Solve for x you get x=30
shepuryov [24]3 years ago
3 0

Answer:

Step-by-step explanation:

setup a proportion

                               Big Triangle             Small Triangle

corresponding              15                              3

corresponding               x                               6

so you are trying to solve 15/x=3/6

cross multiply 6(15)=3(x)

last step divide both sides by 3 giving x=30 ft

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Answer:

f(x) + g(x) = x + 20

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

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Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = 6x - 4

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<u>Step 2: Find f(x) + g(x)</u>

  1. Substitute in functions:                                                                                     f(x) + g(x) = 6x - 4 + (-5x + 24)
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  3. Combine like terms:                                                                                         f(x) + g(x) = x + 20
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