Mathematics, 18.03.2021 02:30 devante63

Liz is taking guitar lessons and practices every night. Yesterday, she played a total of 40 chords in 8 minutes. Today, she will play chords for 5 minutes. If she plays at the same rate, how many chords will Liz play today?

Answers

Answer from: Quest

a negative exponent is translated as follows:

$a^{-m} = \dfrac{1}{a^m}$

so, we have

$\left(5^{-1}+3^{-1}+2^{-1}\right)^{-1} = \left(\dfrac{1}{5}+\dfrac{1}{3}+\dfrac{1}{2}\right)^{-1} = \left(\dfrac{6+10+15}{30}\right)^{-1}=\left(\dfrac{31}{30}\right)^{-1}=\dfrac{30}{31}$

Answer from: Quest

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step-by-step explanation:

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Answer from: Quest

i can you with this answer

step-by-step explanation:

Answer from: Quest

$a) y = a b x - c b$ answer:

step-by-step explanation:

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Liz is taking guitar lessons and practices every night. Yesterday, she played a total of 40 chords i...