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Crystal and Willow each do a total of 30 duolingo lessons daily. If they each earn a streak of 30 days, but every Wednesday they only did 1 lesson,how many lessons were completed in total?

Sagot :

Intriguing456

Answer:

1568 lessons

Step-by-step explanation:

We know that Crystal and Willow did the same number of Duolingo lessons every day. So, in constructing an expression to model the total number of lessons completed by both people, we can multiply everything by 2:

  • [tex]2( \ )[/tex]

Next, we can determine that they both completed 30 lessons a day for 26 days, since every Wednesday they only did 1 lesson, and there are 4 Wednesdays (in 4 weeks) every month, which is about 30 days:

  • [tex]2(26 \times 30)[/tex]

Finally, we can add the 4 days of only doing one lesson they did on the Wednesdays:

  • [tex]2\left(\dfrac{}{}(26 \times 30) +(4 \times 1)\dfrac{}{}\right)[/tex]

Simplifying the expression, we get:

[tex]2(780 + 4)[/tex]

[tex]=2(784)[/tex]

[tex]= 1568[/tex]

So, Crystal and Willow completed 1568 lessons in total.

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