The answer is: [C]: " 210 m " .
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The distance across the lake is: " 210 m " .
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Explanation: To solve:
Assume that: "L" represents the distance across the lake, in units of "m" ("meters").
We are given: "Assume the triangles are similar".
So; let us assume that: "60 m" is similar to "L" .
"x" is similar to "y" .
"20 m " is similar to "70 m".
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So: = ;
Note: " = ;
Rewrite as:
= .
Now, cross multiply:
2L = 7 * 60m ;
→ 2L = 420m ;
Divide each side of the equation by "2" ;
to isolate "L" on one side of the equation; & to solve for "L" ;
→ 2L / 2 = 420m / 2 ;
to get:
→ L = 210 m .
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The answer is: " 210 m " .
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which corresponds to:
Answer choice: [C]: " 210 m " .
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Answer:
It would be (2,5)
Step-by-step explanation:
Right 2
and flip
:)
Brainlist appreicated
18 + 4 (1 × 5) + 3 - 2
22 × 5 + 1
22 × 6
142 = Answer ...
Answer:
27
Step-by-step explanation:
9 crew members complete a job in 3 months
Number of crew members is inversely proportion to construction time :
Let :
Crew members = m
Construction time = t
m α 1 /t
m = k/t
m = 9 ; t = 3
9 = k /3
k = 27
If t = 1 (one month)
m =?
m = k/t
m = 27 / 1
Hence;
m = 27 * 1
m = 27 workers
Answer:
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Step-by-step explanation: