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Paladinen [302]

3 years ago

8

Stoplight A changes color every 42 seconds and Stoplight B changes color every 30 seconds. Both stoplights changed color 10 seco

nds ago. After how many seconds will the stoplights change color at the same time again *
200
190
210
180

1 answer:

LenaWriter [7]3 years ago

7 0

Answer:

210

Step-by-step explanation:

LCM of 42sec and 30 sec=210 sec

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$FV=2,300\left(1+ \frac{0.066}{12} \right)^{12\left( \frac{7}{12}\right) } \\ \\ =2,300(1+0.0055)^7=2,300(1.0055)^7 \\ \\ =2,300\times1.03914=\$2,390.02$ </span>

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4 years ago

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3 years ago

Please help me with this

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Answer:

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Step-by-step explanation:

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Have a nice day!

and can I maybe have brainliest? Thanks!

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Step-by-step explanation:

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