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ratelena [41]
3 years ago
14

A salesman travelled 2/5 of his journey before lunch and 3/8 of his journey after lunch.

Mathematics
1 answer:
AysviL [449]3 years ago
7 0
2/5+3/8= 31/40 therefore he still has 9/40 to go.
to get this you multiply the two denominators together
5x8=40 which is your denominator
then you cross multiply the two numerators
2x8=16
3x5=15
to get the final
15/40+16/40=31/40
and you are left with 9/40
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Applying log rule \log a+\log b=\log (a b) in the above expression.

⇒ \ln 8^{2}+\ln y^{2}=\ln \left(8^{2} y^{2}\right)

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2 years ago
Which is the correct way to evaluate f(15) for the function f(x)=2(x+3)?
Thepotemich [5.8K]

Answer:

the first option

Step-by-step explanation:

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cuz

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for small changes in temperature, the formula for the expansion of a metal rod under a change in temperature is: g-l=al(t-t), wh
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Given that,

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Learn more about temperature here: brainly.com/question/24746268

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